Azul, Skeletal God

Hexproof, Trample, Lifelink
{t}{5}{b}Exile 4 cards from your graveyard: Create 4 2/2 skeleton creature tokens with Hexproof
{2}{b}Sacrifice 2 creatures regenerate Azul, Skeletal God (Do this only when you can cast a sorcery)
{x}Sacrifice Azul, Skeletal God: Create {x}2/2 skeleton creature tokens with hexproof