Arthas Reforged Event Heroic and Mythic Missions Guide

The Arthas Reforged is a two-week solo event that runs from March 26, 2025 until April 16, 2025. During the event, players complete challenges related to the new time-limited Arthas Split Leader mini to unlock and upgrade the mini and earn various other rewards.

In this event guide, I will show you the best rewards and optimal path through the reward tree and provide strong army comps for the special event missions.

Arthas Challenge Tips

Here is the full list of minis that count for Glacial Pace: Win Icecrown Citadel missions with a Slow Mini equipped:

• Abomination
• Ancient of War
• Anub'arak
• Bloodmage Thalnos
• Bog Beast
• Core Hounds
• General Drakkisath
• Footmen
• Gargoyle
• Harvest Golem
• Onu
• Pyromancer (from patch 115633, 8 April)
• Swole Troll
• Treant

Arthas Event Missions

You access event missions directly from the event island: open the Arthas event, and you will see a Missions tab in addition to Challenges and Rewards.

Event missions can use any existing maps in the game, they can be timegated and progress-gated, and use various modifiers to make the encounters more difficult.

In the Arthas event, there are three difficulty levels for event missions. Event missions are unlocked by completing the previous mission. Each difficulty level is based on your average army level:

• Normal: 2 levels below your average army level
• Heroic: Same as your average army level
• Mythic: 2 levels above your average army level, no lower than one level below your highest-level mini

Because both your average army level and your highest-level mini affect the mission level, you may want to off-slot some minis to keep their levels close together.

Blizzard has not announced how the protection against skewed armies works, but the current top hypothesis is that all minis that are more than -4 levels from your highest-level mini will count as -4 levels from it for determining the opponent's level. The average army level shown in your army screen does not matter, and the enemy level shown in the mission list may be incorrect if your army is heavily skewed.

As practical consequences:

• You can have one mini that is +1 compared to the boss in Mythic (Assuming all other minis at -4 from the highest, with a total of 3 levels available to use between them on top)
• You can have up to 3 minis at the same level as a Mythic (Assuming other minis at -4 from the highest, with a total of 2 levels available to use between them on top)
• You can usually offslot 2 (sometimes 3) minis, preferably ones that bring utility, to lower the mission level by 1
• You cannot significantly outlevel Mythic missions

In addition to increasing levels, each difficulty level has additional modifiers that make the encounters more difficult.

There is currently a bug in the event missions that sometimes causes Arthas to not escape when near death in the first two missions. Instead, he remains invulnerable and keeps fighting. The cause is not fully known, but it looks like Arthas will sometimes refuse to escape when engaged in combat, especially away from his spawn point. When Arthas disengages, he progresses to escape and grants you victory. If you encounter this issue, do not send any more minis to fight Arthas to give him time to escape.

The Lower Spire - Normal and Heroic

In The Lower Spire, you meet Arthas and a patrolling version of Mor'Ladim, who is one of the original campaign bosses. Arthas will resummon Mor'Ladim after a while if you kill it, but killing it is still useful to cut a path to Arthas.

Arthas' army in The Lower Spire:

• Abomination
• Ghoul
• Necromancer
• Meat Wagon
• Skeleton Party

There are also periodic Skeleton spawns at any Towers that Arthas controls, and a bigger spawn of Skeletons and mini-Rattlegores at each phase transition.

Note that you can also use the Arthas comp from Mythic on Heroic difficulty.

Sylvanas with Chimaera and Plague Farmer:

Heroic Lower Spire Sylvanas: rumblo:CFIQAhoECCwQABoECEQQAhoECFgQARoECFkQAhoECBkQABoECFEQAg==

This Sylvanas army is well-equipped to handle Arthas, Mor'Ladim, and the Abominations. Sylvanas has the Fury talent and does not need to be played, she increases the damage dealt by her Horde and Undead minis just by being in the deck.

Swole Troll is your main tank. It has a lot of Health and an area-of-effect attack thanks to the Meatier Elbow talent, so it can stand its ground against Abominations and squads alike. Chimaera is your main damage dealer against Abominations, as Abominations cannot hook or hit it. You also want Plague Farmers against Arthas to stack up poison on him.

Whelp Eggs play a defensive role. You can pre-position them on the bottom left and bottom right, where Skeletons spawn at phase change, to get some damage in early. Ghoul or Swole Troll can help tank, and Witch Doctor can clear the remaining Skeletons near your base.

You can see this build in action here:

The Lower Spire - Mythic

The Mythic version of Lower Spire adds another two levels to the enemies as well as Frost waves from both Arthas and Mor'Ladim when they reach 50% health. Mor'Ladim also summons six Undead Footmen with Bloodlust upon death.

Frost wave:

• Frosts your minis for 2.5 seconds
• When the Frost ends, they explode for 150 Elemental damage to your minis only (so if you have a big group of minis, they will all die)
• Any minis that die to the explosion spawn a Skeleton Mage at the source of the Frost wave (Arthas or Mor'Ladim)

Arthas phases:

• Phase 2 at 70% health: Spawns minis near your base and near Arthas, cleanses poison, and gains a 90% damage shield for 5 seconds
• Frost wave at 50%: no phase indicator, not a real phase change (no immunity or cleanse)
• Phase 3 at 40% health: Same as phase 2
• The fight ends at 10% health and Arthas teleports away

Arthas with Living Bomb:

Mythic Lower Spire Arthas: rumblo:CF4QARoECEQQAhoECFkQAhoECAsQARoECCwQABoECBMQARoECF0QAA==

First, make a small push at Arthas to push him to phase 2. Try to avoid fighting Mor'Ladim at this point, and also avoid pushing Arthas to the Frost wave. Defend against the minis that spawn.

Then, make a bigger attack to push through the Frost wave and to phase 3 in one go. This will spawn a lot of minis at Arthas! Wait 3.5-4 seconds, and use Living Bomb to kill Arthas. Note that Arthas has damage immunity for 5 seconds, and Living Bomb has a 2-second delay from cast to explosion.

It is fine to kill Mor'Ladim at some point, but it is important to not get a Frost wave from him while you are on the way to Arthas. Taking Mor'Ladim out between the pushes can be good. Mor'Ladim respawns after 45 seconds.

You can see this build in action here:

The Pit of Saron - Normal and Heroic

In The Pit of Saron, Arthas is joined by statues of Gish, the first boss from the Plaguelands campaign. When Arthas reaches half Health, these Gish statues come alive and attack your base.

Arthas' army in The Pit of Saron:

• Blizzard
• Dire Batlings
• Plague Farmer
• Skeleton Party
• Spiderlings

Arthas will periodically summon Winter Storms that freeze your minis, who will then explode for some damage when the effect ends.

Heroic mode adds Abominations to the map.

Drakkisath with Plague Farmer and Priestess:

Heroic Pit of Saron Drakkisath: rumblo:CCEQABoECAoQAhoECEYQARoECEQQAhoECEsQAhoECFkQAhoECF0QAA==

With this build, you do not try to beat Gish, you try to win the race instead.

Send one Drakkisath group with support to push towards the left Tower, and send another through the right lane. This helps mitigate the effects of Winter Storms. Your teams should meet at Arthas and attack the boss. When Gish wakes up, there is an explosion, the effect of which you can mitigate with Holy Nova.

You can see this build in action here:

The Pit of Saron - Mythic

The Mythic version of Pit of Saron is incredibly brutal. There are random elements and an overpowering phase change, it is one really hard mission.

The Winter Storms have been buffed and made more frequent for the Mythic version:

• The first storm starts after 30 seconds, then one every 49 seconds: 3:00, 2:11, 1:22, 0:33, overtime 0:44
• Three possible routes, chosen randomly!
• Stuns minis for 6 seconds
• When freed, minis explode for 40 Elemental damage on a radius of 4
• Applies a stack of poison every 0.25 seconds
• 288 poison damage in the four seconds it takes for a storm to go over a mini, 928 poison damage overall

The phase change at 50% has also been buffed. Arthas does the following at 50% health:

• Wakes up Gish
• Spawns an extra Winter Storm
• Applies 3 stacks of poison on all of your minis and explodes them, map-wide
• Cleanses poison from himself
• Gains a 90% damage shield for 5 seconds

The fight ends at 10% health.

The first solutions to the fight used Living Bomb, but if you have the right levels and talents, Starfall is a more consistent option.

Mythic Pit of Saron with Ysera and Starfall:

Mythic Pit of Saron Ysera Starfall: rumblo:CFsQAhoECCQQABoECAcQABoECF0QABoECAgQAhoECBkQABoECBsQAA==

Starfall bonus duration and Eclipse bonus levels for the next spell if cast immediately talents are mandatory. I did this with +0 Starfall and -3 Eclipse. -1 Starfall and -2 Eclipse would also work, and of course any higher combinations.

• Get the gold with Miner: ideally, you can send a Kobold Miner and Dark Iron Miner to the gold veins at the start
• Chimaera + Priestess can take the Tower, note that the Priestess must not be on top of Chimaera to avoid both getting hit by the same rockets; you can also help with Earth Elemental
• Defend with Chimaera, spells, and Ysera minis
• You want to push the 50% change at the start of overtime; there is some leeway both ways
• Make sure you have Hibernation in hand when pushing the phase
• Earth Elemental can Taunt Lich King when your Chimaera push reaches it
• After the phase change, use Hibernate + Eclipse + Starfall - cycle and repeat Eclipse + Starfall
• Kite Gish with Earth Elemental
• Optionally, you can have a Chimaera ready to kill the middle Gargoyle

You can see this build in action here:

Mythic Pit of Saron with Ysera and Living Bomb:

Mythic Pit of Saron Ysera: rumblo:CFsQAhoECAwQARoECBsQARoECBkQABoECCQQABoECF0QABoECAsQAQ==

• Get the gold with Miner: ideally, you can send a Kobold Miner and Dark Iron Miner to the gold veins at the start
• Chimaera + Priestess can take the Tower, note that the Priestess must not be on top of Chimaera to avoid both getting hit by the same rockets
• Defend with Chimaera and Ysera minis
• Earth Elemental Taunts Lich King when your Chimaera push reaches it
• After the phase change, use Sleep + Polymorph + Living Bomb

You can see this build in action here:

The Frozen Throne - Normal and Heroic

Arthas is empowered at The Frozen Throne, and now has the Death Grip talent, for example.

Arthas' army in The Frozen Throne:

• Banshee
• Blizzard (-1 level)
• Gargoyle
• Ghoul
• Necromancer
• Skeleton Party

Arthas will use Defile on the Towers, which will destroy the Towers and damage any nearby minis. In Heroic, these minis are resurrected as Skeletal Mages.

Drakkisath with Priestess and Skeletons:

Heroic Frozen Throne Drakkisath: rumblo:CCEQABoECFkQAhoECEQQAhoECF0QABoECEYQABoECB4QARoECE0QAg==

Drakkisath is a great Leader for this because he provides Resistance to nearby minis, thereby protecting them from much of the damage. Your goal is to build a Drakkisath deathball with three Priestesses for healing, and take Arthas down in a single attack. Witch Doctor and Plague Farmer are additional damage for the push. Pyromancer plays a dual role, as you can use her in the attack, and she is also important for defense, especially if any Gargoyles attack.

Dire Batlings and Skeletons are purely for defense. The main purpose of Skeletons is to bait any Banshees on them instead of something more useful. A little bit into the fight, two Banshees will spawn in the middle, and dropping the Skeletons on them takes care of both and protects Drakkisath.

You can see this build in action here:

The Frozen Throne - Mythic

Frozen Throne spawns:

• Banshee pair from the middle every 50 seconds: at 2:40, 1:50, 1:00, 0:10, and overtime 0:20 (you need to know the Banshee timings by heart)
• Two Undead Footmen spawn from any Towers controlled by Arthas, first after 15-20 seconds (3:15-3:10) and then every 30-35 seconds thereafter (partially randomized)
• Baron Rivendare summons a Footman every 20-34 seconds
• Baron Rivendare respawns after 45 seconds if killed

Frozen Throne Baron Rivendare:

• Baron Rivendare has a 400 Elemental damage melee cleave and a 250 Elemental damage single-target anti-air attack (can be swarmed by flying units)
• Baron Rivendare summons a Footman every 20-34 seconds
• Baron Rivendare respawns after 45 seconds if killed
• He switches lanes every 25 seconds

Frozen Throne Mythic phases:

Every phase:

• Spawns minis
• Defiles Towers
• Frost explosion (each mini explodes for 150 damage, slightly delayed)
• Arthas cleanses poison from himself
• Arthas gains a 90% damage shield for 5 seconds
• Map spawns gain a level

Phase two at 70% Health:

• Arthas gains cleave
• Arthas gains Death Grip (Plague Farmer can solo p1 outside of Arthas' range, but cannot repeat the same without distraction for p2)

Phase three at 40% Health:

• Anti-air attack range increased to 9 from 7

Phase four at 15% Health

Drakkisath strategy for Mythic Frozen Throne:

Mythic Frozen Throne Drakkisath: rumblo:CCEQABoECE0QAhoECAUQARoECF0QABoECEQQAhoECEYQABoECBMQAA==

• Drakkisath deathball through the left side, three times
• Cheat Death on the last one
• Bat Rider defends the right side
• Pyromancer kills Gargoyles
• Skeletons are fed to Banshees

You can see this strategy in action here:

Sylvanas strategy for Frozen Throne:

Mythic Frozen Throne Sylvanas (pawfessor): rumblo:CFIQAhoECB4QARoECEwQAhoECAUQARoECEQQAhoECBMQABoECC8QAQ==

General plan:

• Plague Farmers attack the Lich King, three times
• Rime Party to bait Death Grip on 2 & 3
• Cheat Death on the last one
• Take both Towers with Sappers or with Plague Farmers
• Party & Batlings kill Gargoyle, feed Banshee; try to avoid having many on the board at phase changes, position Skeleton Party in the middle where enemies spawn

Fight progression:

• Start by sending Sappers and Plague Farmer left, Batlings toward left through middle
• Build a first push of two Farmers and two sets of Batlings that take down Rivendare and then phase Lich King
• Take the right Tower too, but no hurry, defend right with Bat Rider
• Place a Skeleton Party in the middle where enemy Banshees spawn
• Save gold for phase change
• Handle phase change with Bat Rider and Plague Farmer, other minis as needed
• Take both Towers
• Prepare the second push, use at least two Plague Farmers
• Bait Death Grip with Skeleton Party in one of the top corners
• Save gold for phase change again
• Defend, stabilize, take both Towers
• Prepare the final push, multiple Plague Farmers
• Bait Death Grip with Skeleton Party in one of the top corners
• Cheat Death for the final frost explosion

You can see this strategy in action here:

Challenges and Tickets

Full reward tree cost: 35,250 tickets

Tickets from Event challenges: 45,550 tickets

Tickets from Daily Offers: 500 tickets each

Daily Offer bug

This bug has been fully fixed. You now get 500 tickets per Daily Offer, and you get them immediately.

The Daily Offer tickets had been bugged for some time and were bugged at the start of this event as well.

When you claimed a Daily Offer with Coins, you were not immediately awarded the tickets. The tickets were only added to your ticket count when your ticket total was updated: when you either earned more tickets by claiming an event challenge or when you bought a reward from the event reward tree.

Note that there was no animation acknowledging the additional tickets, they just appeared.

The Reward Tree

Available rewards:

• 22 Arthas Stars
• 2500 Coins (3750 with Booster)
• 5 Stars for 8 different minis (40 stars overall)
• 1 Modest Tome
• 2 Major Tomes
• 7 Mega Tomes
• 1 Troop Choice
• 3 Star Tomes
• 2 Rare-O-Matics
• Rare Core
• Epic Core
• Legendary Core
• Arthas portrait & 6 skins

The most important rewards are the Coins, Rare-O-Matics, and the Arthas stars. It is possible to get the entire tree with reasonable effort, so you don't have to make hard choices if you participate in the event.

Optimal Path Through the Reward Tree

Step 1: Get Arthas! The first Arthas star is immediately available on the top left, and you want it now.

Step 2: Work your way down the tree, then split towards the sides after Spiderlings

That’s the most important items for a total of 17,700 tickets.

How to Get Arthas Stars

Arthas is a time-limited Leader: after you collect your first Arthas star, he will start appearing on your Grid for the duration of the event. After that, it is uncertain how and when you can acquire Arthas. Arthas will remain usable for players who have him, so you want to get and upgrade Arthas during the event.

You can get 22 Arthas Stars from the reward tree, enough to get it to Rare.

Because Arthas will be on the Grid after you collect him, you can upgrade him further with Coins:

• 1 Rare-O-Matic + 3 Stars = Epic (17 Stars in addition to the reward tree)
• 3 Rare-O-Matics = Legendary (42 Stars in addition to the reward tree)

There are also two bundles available for Arthas, although they seem to be mainly for the cosmetics:

• 10 Stars for $19.99 - includes Prince Arthas skin
• 40 stars for $59.99 - includes Prince Arthas skin and a Tower skin