SLAY THE SPIRE / IRONCLAD

Fiend Fire

Exhausts other cards in hand to deal repeated damage, trading deck resources for burst.

QUICK REFERENCESlay the Spire 1Reviewed 2026-10-28Reference / noindex

OVERVIEW

What is Fiend Fire?

Exhausts other cards in hand to deal repeated damage, trading deck resources for burst.

This reference covers gameplay decisions in the original Slay the Spire. Character-specific options and relic synergy can change how useful an item is, so consider your current deck, health, upcoming enemy and available resources before applying a strategy.

PRACTICAL STRATEGY

When and how to use it

Sequence draw and hand composition to maximize payoff and avoid consuming essential future answers.

COMMON MISTAKES

What to avoid

Do not burn your remaining scaling or defensive pieces for nonlethal damage.

CONTINUE ON VOLPEDIA

Related topics and walkthroughs

Boosts Shiv damage and turns a small-hit package into serious offense.

CARDSAcrobatics

Draws several cards while discarding one, a tool for targeted deck cycling.

CARDSAdrenaline

Grants draw and energy without consuming normal energy; excellent for tempo.

CARDSAfter Image

Gains Block as cards are played, rewarding high-action turns.

Offers Block and draws cards, enabling flexible defensive cycles.

CARDSBall Lightning

Attack that channels Lightning, adding damage and orb momentum.

Keeps unspent Block between turns, supporting defensive scaling plans.

Independent Volpedia editorial resource, not affiliated with Mega Crit. Original game (Slay the Spire 1), reviewed 2026-10-28. Slay the Spire 2 has separate rules, cards and characters and is not included here. Category graphics are original conceptual illustrations, not game screenshots or actual card artwork. Detailed numerical card costs, damage, upgrade effects and drop percentages are omitted where not individually checked. Editorial verification records are stored separately from public articles.