Within the first Wing of Molten Core you will encounter Lucifron and Magmadar.

Defeating each of the bosses awards you with 100 Valor. Valor is used for upgrading an army slot to Diamond (+4 levels). Defeat both bosses to earn yourself a Boost Slot which can be used to upgrade one of your Leader's Army Slots so that the Mini in that slot is treated as though it is maxed out (level 20) for XP.

LFR Builds

This is the most versatile build against Lucifron. It can be used together with a friend for fast XP farming (attack Lucifron directly) or in the open queue to carry other players at a significantly lower level (take the Towers).

If you use it for XP farming, Dark Iron Miner is the flex slot where you can use the mini you want XP for.

Important Talents

Bloodthirsty on Execute adds more damage when used near Unbound minis.

Infectious Swipes on Harpies are important to add more damage to take out Fire Elementals and Molten Giants.

Strategy

If XP farming with a friend:

Ignore the Dominator Lieutenants and Towers and beat Lucifron with Unbound minis. Take turns sending Whelp Eggs and Quilboar: deploy the Whelp Eggs first, and when Lucifron is shooting at the Eggs, deploy the Quilboar on the opposite side, closer to Lucifron. As the Eggs are popped, Lucifron will search for a new target and now that the Quilboar is the closest target, Lucifron will turn towards it.

Defend with Harpies as needed.

If playing in the open queue:

Use Quilboar or Dark Iron Miner to distract a Dominator Lieutenant. Use Execute and Worgen to take it down.

Defend with Harpies as needed.

Capture the Towers and then attack Lucifron. Save gold for the phase transition, be ready to Execute the Dominator Lieutenant. Wait until the Dominator Lieutenant is close to the Tower and hit both the Tower and the Dominator with the Execute before the Tower is fully constructed after a phase transition.

Repeat the process of taking out the Dominators, capturing the Towers, and then attacking Lucifron three times, and you’re done.

Watch it in action

If your Execute is lower level than Lucifron, it may be worth it to leave it out. If you have a good Execute, you should bring the Execute build.

Important Talents

Infectious Swipes on Harpies are important to add more damage to take out Fire Elementals and Molten Giants.

Strategy

Use Quilboar or Dark Iron Miner to distract a Dominator Lieutenant. Use Skeleton Party and Worgen to take it down.

Defend with Harpies as needed.

Capture the Towers and then attack Lucifron. Save gold for the phase transition, be ready to attack the Dominator Lieutenants.

Repeat the process of taking out the Dominators, capturing the Towers, and then attacking Lucifron three times, and you’re done.

Watch it in action

Important Talents

Explosive Shells on Anub’arak is mandatory to have enough damage output from the Beetles.

Bloodthirsty on Execute adds more damage when used near Unbound minis.

Strategy

Use Quilboar to distract a Dominator Lieutenant. Use Unbound minis to take it down.

Capture the Towers and then attack Lucifron. Save gold for the phase transition, be ready to play your Anub’arak and to Execute the Dominator Lieutenant. Wait until the Dominator Lieutenant is close to the Tower and hit both the Tower and the Dominator with the Execute before the Tower is fully constructed after a phase transition.

Repeat the process of taking out the Dominators, capturing the Towers, and then attacking Lucifron three times, and you’re done.

Watch it in action

Boss Strategy

Updated: May 2025

molten core lucifron map

Minis in Lucifron’s Army

  • Dark Iron Miner - Dwarven Ambition
  • Firehammer - Moultin’ Metal
  • Living Bomb - Blast Radius
  • Molten Giant - Bolster
  • Necromancer - Breath of the Dying
  • Spiderlings - Envenom

Living Bomb is a major threat to large groups of minis.

The Boss and Other Minis

Lucifron

  • 12,000 health
  • Unstoppable
  • Shadow Splash: 160 Elemental damage, 1.4 seconds attack speed, 12 range, 4 radius
  • Base killer (phase 3, targets Barracks): 120 Elemental damage, 10 seconds cooldown, 100 range, 4 radius

Dominator Lieutenant

  • 1400 health
  • Resistant, Unstoppable
  • Dominates the nearest enemy mini within a range of 22 - ignores dominated minis, Whelp Eggs, and Ragnaros
  • Tower killer (targets Towers and Ragnaros): 60 Elemental damage, 4 seconds cooldown, 14 range, 4 radius
  • Base killer (targets Barracks and Ragnaros): 60 Elemental damage, 6 seconds cooldown, 29 range, 4 radius

Map Mechanics

Lucifron summons 3 Fire Elementals every 120 seconds.

There are two Dominator Lieutenants on the map at the start of phase 1. They will mind control the closest mini in range, and immediately mind control a new one when their previous target dies. They stay behind the Towers and do not respawn during this phase if killed.

Phase 2 begins at 70% health

  • Lucifron summons two Dominator Lieutenants, and this time they will move closer to your Barracks and can shoot at it
  • Lucifron destroys enemy minis and buildings on a large radius
  • Lucifron cleanses itself of Poison and Burn
  • Lucifron resets its own gold to 0
  • If you are still in the same phase 120 seconds after phase 2 starts, Lucifron will summon another pair of Dominator Lieutenants

Phase 3 begins at 40% health

  • Lucifron summons two Dominator Lieutenants, who will again move closer to your Barracks and can shoot at it
  • Lucifron itself gains the Base killer ability and starts shooting at your Barracks every 10 seconds
  • Lucifron destroys enemy minis and buildings on a large radius
  • Lucifron cleanses itself of Poison and Burn
  • Lucifron resets its own gold to 0
  • If the battle is not over 120 seconds after phase 3 starts, Lucifron will summon another pair of Dominator Lieutenants

General Strategy

If you are playing with a friend, it is possible to ignore the Dominator Lieutenants and Towers and beat Lucifron with Unbound minis. Take turns sending Whelp Eggs and Quilboar: deploy the Whelp Eggs first, and when Lucifron is shooting at the Eggs, deploy the Quilboar on the opposite side, closer to Lucifron. As the Eggs are popped, Lucifron will search for a new target and now that the Quilboar is the closest target, Lucifron will turn towards it.

Minor defenses, such as Harpies against the Fire Elementals, together with repeated Unbound attacks, can take Lucifron down.

However, if you are in the open queue, you are unlikely to have the firepower needed to win such a race. In that case, you want to take the Dominator Lieutenants down and capture the Towers in each phase, and then attack Lucifron.

In the first phase, it is easier to start with the right Dominator because the left one has a Fire Elemental next to it.

You can first send an Unbound mini to a faraway location that is still within range of the mind control ability to make the Dominator focus on that one while you send others to attack it. Earth Elemental with Taunt can also be nice as it can be played next to the Dominator and the Tower and remain the target of the Tower thanks to Taunt, even after getting mind controlled.

It is also possible to use a Banshee to recapture a dominated mini, which will confuse the Dominator and make it ignore new targets while the original mini is alive. It may not be worth bringing a Banshee for this, but it is an option.

Be ready to defend against the timed Fire Elemental spawns and save gold for the phase transitions. If you use Execute for the Dominator Lieutenants (they take full damage from it), you can wait until the Dominator Lieutenant is close to the Tower and hit both the Tower and the Dominator with the Execute before the Tower is fully constructed after a phase transition.

Repeat the process of taking out the Dominators, capturing the Towers, and then attacking Lucifron three times, and you’re done.

LFR Builds

Important Talents

Pick Lock on Defias Bandits increases your income from chests.

Splashing Pumpkins on Plague Farmer allows it to outrange Towers.

Strategy

Take control of the Towers, which also gives you control over both chests. Note that you can use Defias Bandits also on your partner’s side, if they have captured the Tower, as you can get them to walk to the chest from the Tower’s side.

Use Execute on Ancient Core Hounds.

Use Harvest Golem to tank for your Plague Farmers and Sylvanas as needed. The splash damage can often hit Magmadar when you are fighting against Hounds.

Important Talents

Celestial Focus on Eclipse gives more levels to Starfall.

Moonfury on Earth and Moon further improves Starfall damage.

Pick Lock on Defias Bandits increases your income from chests.

Splashing Pumpkins on Plague Farmer enable it to outrange Towers.

Strategy

Take control of the Towers, which also gives you control over both chests. Note that you can use Defias Bandits also on your partner’s side, if they have captured the Tower, as you can get them to walk to the chest from the Tower’s side.

Cast Eclipse followed by Starfall on Magmadar. It is important that you do not get the two Cenarion spells out of sync: you want the bonus level spell to always be Starfall. If you need to use spells for defense early on, re-sync them so that you will get the full damage on the boss.

Bonus points for dropping Whelp Eggs behind Magmadar: Immolate pops the Eggs and Magmadar needs to turn slowly to actually hit the Whelps.

After some spell cycles, Magmadar will fall.

Watch it in action

Important Talents

Pick Lock on Defias Bandits increases your income from chests.

Filet Trebuchet on Meat Wagon allows it to outrange the Ancient Core Hound aggro radius.

Strategy

Take control of the Towers, which also gives you control over both chests. Note that you can use Defias Bandits also on your partner’s side, if they have captured the Tower, as you can get them to walk to the chest from the Tower’s side.

Use Execute on Ancient Core Hounds.

Use Ghoul to tank for your Meat Wagons and Sylvanas as needed.

Watch it in action

Boss Strategy

Updated: May 2025

molten core magmadar map

Minis in Magmadar’s Army

  • Drake - Engulfing Flames
  • Execute - Bloodthirsty
  • Firehammer - Moultin’ Metal
  • Fire Elemental - Molten Core
  • Pyromancer - Conflagrate
  • Skeleton Party - 5-Man

The Boss and Other Minis

Magmadar

  • 12,000 health
  • Unstoppable
  • Fire Breath: 5 times 80 Elemental damage (400 damage overall), 2.4 seconds attack speed, 7 range, 90 degrees arc
  • Immolate: Minis within a radius of 6 from Magmadar take 10 Elemental damage every 0.5 seconds

Ancient Core Hound

  • 3800 health
  • Resistant
  • Bite: 230 Physical damage, 2 seconds attack speed, melee range, aggro range 12
  • Immolate: Minis within a radius of 4.5 from Ancient Core Hound take 10 Elemental damage every 0.5 seconds. This ability persists in death.
  • Resurrect: Resurrects dead Ancient Core Hounds back to life at 50% health on a radius of 9 (walks to a range of 5 to begin the 3-second resurrection cast)
  • Rebirth: When resurrected, deals 200 Elemental damage to enemy minis on a radius of 9.5

Map Mechanics

Magmadar summons an Earth Elemental every 30 seconds, starting from 5:59. There are four spawn spots that take turns with each one spawning an Earth Elemental every 120 seconds. The first one spawns in mid-left (5:59), followed by right (5:29), mid-right (4:59), and left (4:29).

At phase transitions at 70% health and 40% health, Magmadar:

  • Gains a 90% damage shield for 5 seconds
  • Cleanses itself of Poison and Burn
  • Reduces its current gold to 0
  • Destroys enemy minis on a radius of 10 around it
  • Heals all Ancient Core Hounds to full
  • Resurrects any dead Ancient Core Hounds and heals them to full
  • Spawns one additional Ancient Core Hound

General Strategy

The key to defeating Magmadar is to take control of the Towers, which also gives you control over both chests. The chests will keep your economy rolling, especially if you bring some Defias Bandits with Pick Lock. Note that you can use Defias Bandits also on your partner’s side, if they have captured the Tower, as you can get them to walk to the chest from the Tower’s side.

When you have control of the Towers, you still need to handle various direct attacks against your base through the middle, but the overall pressure level is low. Just watch out for a surprise Skeleton Party because they are Unbound.

When mining the gold mines in the middle, deploy your Kobold Miner at the edge where the target gold mine is. A single Kobold is unable to grab both the middle mine and the side mine.

There are multiple ways you can bring the fight to Magmadar itself:

  • Execute can hit the Ancient Core Hound packs hard and clear a path for ranged minis to attack Magmadar. Combine them with Quilboar for more time on the target.
  • You can use long-range minis like Plague Farmer, Meat Wagon, and Sylvanas even without Execute.
  • Eclipse and Starfall can bypass the Ancient Core Hounds altogether and hit Magmadar directly. Bonus points for dropping Whelp Eggs behind Magmadar: Immolate pops the Eggs and Magmadar needs to turn slowly to actually hit the Whelps.

Note that the Ancient Core Hounds can wander surprisingly far, and try to not pull them on top of the Towers because they will stay there.