Sinclaine, Serpent Tongue

Persuasion — {1}{u} (Target a creature an opponent controls and roll a 10 sided die. If the result is higher than the targeted creature's toughness, gain control of it until the next end step. Persuade only as a sorcery, and only once per turn.)
Backstab - {1}{b}{b} (Deal damage to target tapped creature equal to twice this creature's power. Backstab only as a sorcery, and only once per turn.)
Whenever a creature you control but didn't orig