Artefacto
Siempre que una criatura te ataque a ti o a un planeswalker que controlas, esa criatura obtiene +2/+0 hasta el final del turno.

: El jugador objetivo que no sea el propietario de la Corona de la fatalidad gana su control. Activa esta habilidad solo durante tu turno.
You are Crown of Doom’s owner if it started the game in your deck. Therefore, once you hand off the Crown, your opponents cannot give it back to you by activating its ability (although other effects, such as the one Zedruu the Greathearted’s ability creates, may do this).