Stubborn Burrowfiend

Whenever Stubborn Burrowfiend becomes saddled for the first time each turn, mill two cards, then Stubborn Burrowfiend gets +X/+X until end of turn, where X is the number of creature cards in your graveyard.
Saddle 2 (Tap any number of other creatures you control with total power 2 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

每当顽固伏穴兽每回合首度成为已乘驾时，磨两张牌，然后顽固伏穴兽得+X/+X直到回合结束，X为你坟墓场中的生物牌数量。
乘驾2（横置任意数量由你操控且力量总和等于或大于2的其他生物：此坐骑成为已乘驾直到回合结束。只能于法术时机乘驾。）