Grog Tu Var, Blood Shaman

(You may pay X life for the casting cost of Grog Tu Var, Blood Shaman)
Haste, First strike
Grog Tu Var, Blood Shaman enters the Battlefield with +X/+X. If you paid more than half of your life to cast Grog Tu Var, restart the game and place Grog Tu Var onto the Battlefield with +X/+X and Haste, Double strike, Menace and Blood walker(this creature can't be blocked if defending player has more life than you