復活させるものトリーヴァ

飛行
復活させるものトリーヴァがいずれかのプレイヤーに戦闘ダメージを与えるたび、あなたは {2}{W}を支払ってもよい。 そうした場合、色を１色選び、その後あなたはその色のパーマネント１つにつき１点のライフを得る。

Treva, the Renewer

Flying
Whenever Treva deals combat damage to a player, you may pay {2}{W}. If you do, choose a color, then you gain 1 life for each permanent of that color.

Magic Online Promos

Duel Decks: Phyrexia vs. the Coalition

Flying
Whenever Treva, the Renewer deals combat damage to a player, you may pay {2}{W}. If you do, choose a color, then you gain 1 life for each permanent of that color.

Pro Tour Promos

Invasion

Flying
Whenever Treva, the Renewer deals combat damage to a player, you may pay o2o
W. If you do, choose a color. You gain 1 life for each permanent of that color.

You choose the color during resolution. This means your opponent does not get to react after knowing the color you chose.