Springjack Knight

兔脚羊骑士 (Springjack Knight) (zhs)

Creature - Kithkin Knight | Power/Toughness: 2 / 1 (CMC 3)
Whenever Springjack Knight attacks, clash with an opponent. If you win, target creature gains double strike until end of turn. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)