Clash
Clash deals damage, but can be played only when every card in your hand is an Attack.
How it works
The listed base effect is 14 damage, increasing to 18 damage when upgraded. Both versions retain the stated hand condition: every card in hand must be an Attack for Clash to be playable. The source labels it a Common Ironclad Attack and gives no further condition or acquisition details.
Read the supporting references
A focused reference to ten Ironclad cards and their recorded effects, including listed upgrades and play conditions. Card details come only from the retrieved Slay the Spire 1 card-list passage. This does not attempt a complete card, relic, character-unlock, or Ascension guide. Guidance explains the referenced mechanics; it is not a tested damage ranking. Check the stated edition and source version before applying a patch-specific detail.