Shogun Decapitator

Add {c} to your mana pool for rest of game
(Sacrifice the Shogun you lose you mana)
{t}{1} Becomes 2/2 creature with flying.
(For every creature Shogun Decapitator kills
put ether +1/+0 or +0/+1 on the Shogun)
Sacrifice Shogun Decapitator to kill
two creature or one creature and one mana.
(If sacrifice can't come back in to play)