Action 1. This indicates that, in addition to being able to be played during an Open State, this spell may also be played during Open States during Showdowns. See rule 806. Action for more information.
§ 159.2.a Core Rules PDF (officieel)
§ 159 Certain Keywords on spells are not executable rules text, but instead intrinsic properties of the spell.
§ 159.2 These keywords are:
