Antewise

Iron Wave — 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.
Iron Wave card art
Iron Wave

Gain 5 Block. Deal 5 damage.

CharacterIronclad
TypeAttack
RarityCommon
Cost1 Energy
TargetAnyEnemy
Total damage5
Per Energy5.00 → 7.00 upgraded

Card text

Gain 5 Block. Deal 5 damage.

Upgraded: Gain 7 Block. Deal 7 damage.

Where it sits on the curve

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

Iron Wave produces 5.00 per Energy at base and <strong>7.00</strong> upgraded. That ranks it 121 of 143 of the 143 attacks with a fixed cost. It sits in the top 16% 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 1 Energy

  • Aggression — At the start of your turn, put a random Attack from your Discard Pile into your Hand and U
  • Armaments — Gain 5 Block. Upgrade a card in your Hand.
  • Ashen Strike — Deal 6 damage. Deals 3 additional damage for each card in your Exhaust Pile.
  • Body Slam — Deal damage equal to your Block.
  • Break — Deal 20 damage. Apply 5 Vulnerable.
  • Breakthrough — Lose 1 HP. Deal 9 damage to ALL enemies.

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 Iron Wave do in Slay the Spire 2?

Gain 5 Block. Deal 5 damage.

What does upgrading Iron Wave change?

Gain 7 Block. Deal 7 damage.

How much does Iron Wave cost?

1 Energy. It is a Common Attack card.

Is Iron Wave efficient for its cost?

It produces 5.00 damage per Energy, which ranks 121 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.