Encantamiento legendario — Trasfondo
Las criaturas comandante de las cuales eres propietario tienen "Siempre que esta criatura ataque a un jugador, si ningún oponente tiene más vidas que ese jugador, otra criatura objetivo que controlas obtiene +X/+X hasta el final del turno, donde X es la fuerza de esta criatura".
If a card refers to a commander creature you own, a Background won't usually be counted or included for that effect. If another spell or ability causes your Background to become a creature, however, it will be included. Any effect that refers to your commander or a commander you own or control without specifying creature will apply to a Background that is your commander, as appropriate.