Alpha
From Archon Arcana - The KeyForge Wiki
When a card has the Alpha keyword, it can only be played if you haven’t played, used, or discarded any other cards during the current step of your turn.
—KeyForge Master Rulebook v18, January 2025
When a card has the Alpha keyword, it can only be played if you haven’t played, used, or discarded any other cards during the current step of your turn.