Goma Fada Vanguard
Creature — Human Warrior
Whenever this creature attacks, target creature an opponent controls with power less than or equal to the number of Warriors you control can't block this turn.
"Her weapon's impressive, sure. But you should see her wield it." —Gred, expedition warrior
Sean Sevestre
Zendikar Rising (ZNR)
• #141Rulings
The power of the target creature and the number of Warriors you control are checked only as Goma Fada Vanguard's ability is put onto the stack and as that ability resolves. If the creature's power becomes greater after the ability has resolved, it still can't block.
(wotc • 2020-09-25)
The target creature is restricted from blocking anything, not just Goma Fada Vanguard.
(wotc • 2020-09-25)
Rulings
The power of the target creature and the number of Warriors you control are checked only as Goma Fada Vanguard's ability is put onto the stack and as that ability resolves. If the creature's power becomes greater after the ability has resolved, it still can't block.
(wotc • 2020-09-25)
The target creature is restricted from blocking anything, not just Goma Fada Vanguard.
(wotc • 2020-09-25)