Jerren, Corrupted Bishop (Showcase) #316

Whenever Jerren, Corrupted Bishop enters the battlefield or another nontoken Human you control dies, you lose 1 life and create a 1/1 white Human creature token. 2: Target Human you control gains lifelink until end of turn. At the beginning of your end step, if you have exactly 13 life, you may pay 4BB. If you do, transform Jerren.

Flying, trample, lifelink Sacrifice another creature: Draw a card.