Market price
- Near Mint
- $6.68
- Lightly Played
- $4.91
- Moderately Played
- $5.26
- Heavily Played
- $2.07
- Near Mint
- $6.68
- Lightly Played
- $4.91
- Moderately Played
- $5.26
- Heavily Played
- $2.07
Buy
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Flying, lifelink, hexproof from planeswalkers
Boast — 
, Sacrifice a creature: Each opponent sacrifices a creature or planeswalker.
4/3
Illustrated by Tyler Jacobson
Rulings (6)
Feb 5, 2021
A boast ability can be activated at any point after the creature with that ability has been declared as an attacker. This can be before blockers are declared, after blockers are declared but before combat damage is dealt, during combat after combat damage is dealt, during the postcombat main phase, during the end step, or, in some unusual cases, during the cleanup step.
Feb 5, 2021
As the boast ability resolves, first the next opponent in turn order chooses a creature or planeswalker they control. Then each other opponent in turn order chooses a creature or planeswalker they control, knowing the choices made before their choice. Then all chosen creatures and planeswalkers are sacrificed at the same time.
Feb 5, 2021
Eradicator Valkyrie can't be the target of abilities whose source is a planeswalker an opponent controls.
Feb 5, 2021
If a creature with a boast ability is put onto the battlefield attacking, it was never declared as an attacker. Its boast ability can't be activated that turn.
Feb 5, 2021
If an effect adds additional combat phases to a turn and a creature with a boast ability attacks more than once during that turn, its boast ability can still be activated only once.
Feb 5, 2021
If it's not your turn and you gain control of a creature with a boast ability after that creature attacked, you can activate that creature's boast ability if it hasn't been activated yet that turn.
