Fortress of the Two-Faced Guardian — guide

In short

Iron Twins Fortress is a 15-floor dungeon featuring two Iron Twins. Rewards include artifacts, silver, and ascension materials. It's worth farming for good gear and resources, but the boss demands a prepared team.

Mechanics

• You fight two Twins. When one dies, the other revives it after a few turns. You need Block Revive or to kill both quickly.
• The Twins place Soul debuffs on your team. If a hero with a Soul debuff dies, the boss gains a buff (healing or damage increase). Cleanse Soul debuffs.
• The boss has high Resistance, so debuffs (Decrease DEF, Weaken, Block Revive) must land — you need high Accuracy.
• The boss deals heavy damage, so your team needs survivability: HP, DEF, heals, shields, or Block Damage.

What your team needs

Aim for these minimum stats (floors 1–6 / 7–12 / 13–15):

• Speed: 150+ / 220+ / 250+
• Accuracy: 155+ / 280+ / 555+
• Resistance: 230+ / 355+ / 705+
• HP and DEF: 25k HP and 2400 DEF / 40k HP and 2800 DEF / 50k HP and 3500 DEF

You must have Block Revive (e.g., from Royal Guard or Marichka the Unbreakable). Bring Decrease DEF and Weaken to kill faster, and a cleanser for Soul debuffs (Mausoleum Mage, Cardiel, Siphi the Lost Bride). Heroes with enemy MAX HP damage work great (Coldheart, Royal Guard, Acrizia).

Teams

• Budget: Kael (damage, poison), Royal Guard (Block Revive, damage), Stag Knight (Decrease DEF, Decrease ATK), Mausoleum Mage (cleanse, Increase RES), Godseeker Aniri (heal, revive). Works because Royal Guard blocks revival, Mausoleum Mage cleanses, and Kael/Royal Guard deal damage.
• Mid-game: Demytha (Block Damage, heal), Geomancer (HP Burn, Weaken), Uugo (Decrease DEF, Block Buffs), Royal Guard (Block Revive), Mausoleum Mage (cleanse). Demytha provides survivability, Geomancer brings damage, Uugo amplifies it.
• Endgame: Cardiel (cleanse, heal, support), Siphi the Lost Bride (cleanse, heal, revive), Marichka the Unbreakable (Block Revive), Gnut (damage, Decrease DEF), Acrizia (enemy MAX HP damage). Marichka blocks revival, Cardiel and Siphi keep the team alive, Gnut and Acrizia melt the boss.

Common mistakes

• No Block Revive — the Twins keep reviving each other endlessly.
• Not cleansing Soul debuffs — heroes die and the boss gets stronger.
• Too low Accuracy — debuffs don't land, damage is minimal.
• Not enough survivability — the team dies to boss damage.

Tips

• In auto-battle, set skill priorities so Block Revive and cleanses are used on cooldown.
• Masteries: Warmaster or Giant Slayer for damage dealers, support masteries for healers.
• Gear sets: Lifesteal for sustain, Relentless for extra turns, Speed and Accuracy for stats, Perception for Accuracy and Speed, Stoneskin for protection.
• Kill one Twin first, then the other — with Block Revive this is much easier.
• Use Decrease DEF and Weaken to speed up kills.