Emissary of Grudges [Commander 2018]

Set: Commander 2018 Type: Creature — Efreet Rare Cost: {5}{R} Flying, haste As Emissary of Grudges enters the battlefield, secretly choose an opponent. Reveal the player you chose: Choose new targets for target spell or ability if it's controlled by the chosen player and if it targets you or a permanent you control. Activate this ability only once.