Xandri, Walker of Hell

Flash, protection from everything
Xandri, Walker of Hell toughness is equal to it's controller's life plus 1.
When Xandri, Walker of Hell enters the battlefield deal {x} damage to each other creature, you gain life equal to the total damage dealt.
At the beginning of any end step if an opponents' life it less than half their starting life, transform Xandri.
"How many innocents must die before you understand what you're doing is wrong" ~Unknown to Xandri