Priority Avenger (Mystery Booster Playtest Cards 2021 #9)

Priority Avenger {3}{W}

Creature — Bird Wizard

Flying

Players can’t cast instant spells unless a spell or ability is on the stack.

3/4

Illustrated by Chris Haukap

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny
Notes and Rules Information for Priority Avenger:
  • Among abilities, only activated and triggered abilities use the stack. Activated abilities are written in the form “[Cost]: [Effect].” Triggered abilities use the word “when,” “whenever,” or “at.” They’re often written as “[Trigger condition], [effect].” Some keyword abilities are activated abilities and will have colons in their reminder texts, and some keyword abilities are triggered abilities and will have “when,” “whenever,” or “at” in their reminder texts. (2019-11-12)
  • Non-instant spells with flash may still be cast any time a player has priority, regardless of what’s on the stack. The same is true of activating abilities. (2019-11-12)