Bommal's Monstrous Bombs — guide

In short

Bommal the Blemish is a Doom Tower boss the community simply calls "the bombs". The boss is not the problem — Monstrous Bombs spawn on the field and detonate at the start of their turn for pure damage that ignores shields. You clear the floor with Freeze, heavy healing and a revive, not with a fat tank. Boss floors pay out Doom Tower chests: artifacts, silver, books and shards.

Mechanics

• Detonation. At the start of its turn each bomb explodes, hitting every champion for pure damage based on that champion's MAX HP. Shields, DEF and Decrease ATK do nothing here.
• Freeze is the only off-switch. A bomb that starts its turn frozen hits for significantly less.
• Bomb immunity. Almost no debuffs or damage sources work on a bomb — only Freeze and HP Burn do.
• HP Burn feeds the boss. Every HP Burn tick on a bomb or on Bommal pushes their Turn Meter, so bombs pop sooner and the boss takes more turns.
• Attrition. The longer the fight runs, the more bombs sit on the field, and two or three detonations in a row end the run.

What your team needs

• Freeze — at least one source, two is better.
• SPD 190–220+ on supports so heals and Freeze land between detonations.
• ACC 200–250+ (higher on Hard) or Freeze just gets resisted.
• Healing and a revive. The damage is percentage-based, so you refill health bars after every blast; one reviver is mandatory.
• Cleanse or Block Debuffs — the boss and the waves stack debuffs.
• Decrease DEF and Weaken on Bommal to chew through his HP faster. Decrease ATK is wasted.
• Leave HP Burn champions at home.

Teams

Starter/budget: Kael, Doompriest, Mausoleum Mage, Stag Knight, Godseeker Aniri. Doompriest cleanses and heals constantly, Mausoleum Mage adds Block Debuffs and DEF, Stag Knight strips DEF, Aniri revives and Kael carries the damage.

Mid-game: Geomancer, Vogoth, Ursala the Mourner, Dhukk the Pierced, Whisper. Geomancer punishes the boss for every hit on your team, Vogoth heals off incoming damage, Ursala keeps DEF up and revives, Dhukk applies Decrease DEF and Whisper finishes the job.

Endgame: Duchess Lilitu, Underpriest Brogni, Geomancer, Acrizia, Gnut. Shields and Block Debuffs carry the team through the detonations while Geomancer reflects damage and Acrizia with Gnut burn the boss down.

Common mistakes

• Bringing HP Burn (Fahrakin the Fat and friends) — it accelerates both the boss and the bombs.
• Relying on shields to survive a detonation; pure damage goes straight through them, so heal after the blast instead.
• No reviver: two detonations in a row and the run is over.
• Slow supports, so Freeze and heals arrive after the bombs have already popped.

Tips

• On auto, disable HP Burn skills in the skill priorities and keep Freeze enabled.
• Put damage dealers in Lifesteal — the cheapest way to top up between blasts.
• Accuracy plus Perception on your debuffer, Speed on supports, Immortal on the front liner.
• Verify that Freeze actually lands on Hard — without ACC it simply gets resisted.
• If you stall out, invest in boss-damage masteries and SPD before stacking more HP.