Encantamento — Aura
Encantar criatura
Toda vez que a criatura encantada atacar, coloque um marcador +1/+1 nela. Depois, se ela tiver três ou mais marcadores +1/+1, sacrifique Provação de Tassa.
Quando sacrificar Provação de Tassa, compre dois cards.
If you sacrifice the Ordeal in some other way, its last ability will trigger.
The check of whether the enchanted creature has three or more +1/+1 counters on it happens as part of the resolution of the attack triggered ability. If the third +1/+1 counter is put on the enchanted creature any other way, you won't sacrifice the Ordeal until the next time the creature attacks.
The +1/+1 counter is put on the creature before blockers are declared and before combat damage is dealt.