Antewise

Howl from Beyond — Ironclad Attack Card in Slay the Spire 2

Updated 17 Oct 2026 Source Slay the Spire 2 card data (spire-codex.com API), 577 cards retrieved 17 October 2026 By
Data status: The facts on this page were checked against the source named above. Game values can still shift with a patch, so re-check anything that looks off.
Howl from Beyond card art
Howl from Beyond

Deal 16 damage to ALL enemies. At the end of your turn, if this is in your Exhaust Pile, play it.

CharacterIronclad
TypeAttack
RarityUncommon
Cost3 Energy
TargetAllEnemies
Total damage16
Per Energy5.33 → 7.00 upgraded

Card text

Deal 16 damage to ALL enemies. At the end of your turn, if this is in your Exhaust Pile, play it.

Upgraded: Deal 21 damage to ALL enemies. At the end of your turn, if this is in your Exhaust Pile, play it.

Where it sits on the curve

Measured the same way as our efficiency tier list: total damage divided by Energy.

Howl from Beyond produces 5.33 per Energy at base and <strong>7.00</strong> upgraded. That ranks it 113 of 143 of the 143 attacks with a fixed cost. It sits in the top 22% on this measure.

The measure ignores everything that is not a number. Area damage, conditions and drawbacks are not priced in.

Other Ironclad cards at 3 Energy

  • Barricade — Block is not removed at the start of your turn.
  • Bludgeon — Deal 32 damage.
  • Corruption — Skills cost 0 1 Energy. Whenever you play a Skill, Exhaust it.
  • Demon Form — At the start of your turn, gain 2 Strength.
  • Mangle — Deal 15 damage. Enemy loses 10 Strength this turn.
  • Stomp — Deal 12 damage to ALL enemies. Costs 1 less 1 Energy for each Attack played this turn.

Where to go next

All 577 cards — the full table, filterable by character. Efficiency tier list — every measurable card ranked.

Rarity system explains how often this card appears. Enchantments covers the modifiers that can change it.

Frequently asked questions

What does Howl from Beyond do in Slay the Spire 2?

Deal 16 damage to ALL enemies. At the end of your turn, if this is in your Exhaust Pile, play it.

What does upgrading Howl from Beyond change?

Deal 21 damage to ALL enemies. At the end of your turn, if this is in your Exhaust Pile, play it.

How much does Howl from Beyond cost?

3 Energy. It is a Uncommon Attack card.

Is Howl from Beyond efficient for its cost?

It produces 5.33 damage per Energy, which ranks 113 of 143 among the attacks that can be measured this way.

More Slay the Spire 2 guides

Sources

Figures and item data on this site are read from the game’s own reference wiki before publishing. Where a value could not be confirmed there, the page says so instead of filling the gap.