Encore

Encore is a keyword ability specifically used in the Commander format. Encore was introduced in Commander Legends.

Encore only appears on non-legendary creatures. You can pay a creature's encore cost and exile it from your graveyard to create a number of token copies of it equal to your number of opponents. Each of those tokens has haste, must attack either that player or a planeswalker they control, and is sacrificed during the end step.