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Base Effect
Furnace
Furnace card borderFurnace card framePowerFurnace card bannerFurnace card cost plate

Furnace

1
At the start of your turn, Forge 4.
Upgrade Effect
Furnace+
Furnace+ card borderFurnace+ card framePowerFurnace+ card bannerFurnace+ card cost plate

Furnace+

1
At the start of your turn, Forge 6.
RegentPowerUncommon

Furnace

Base Effect

At the start of your turn, Forge 4.

✦Upgrade Effect

At the start of your turn, Forge 6.

Strategy

Use this card to smooth early hallway fights, then evaluate whether it still advances your energy curve and scaling plan in elite and boss encounters.

Recommended Synergy

Pair it with draw, cost reduction, and relic support that lets the effect matter on the exact turn you need tempo or setup.

Furnace card guide with upgrades, synergies, and deck usage