传奇结界 — 身世
由你拥有的指挥官生物得+3/+3且具有飞行、死触、「守护~支付3点生命」与「在你的维持开始时,牺牲一个生物。」
Choose a Background is a variant of the partner ability. You may have two commanders if one of them is a legendary creature with the choose a background ability and the other is a legendary Background enchantment. Backgrounds and cards with choose a Background do not interact with cards which have any other partner ability.