Ota, Spirit of Space

Flying
{w/b}, Sacrifice one creature : draw a card
{w/b}{w/b}, sacrifice two creatures : put a land from your
hand into the battlefield tapped
{w/b}{w/b}{w/b}, sacrifice three creatures : put target sorcery or instant card from graveyard to your hand
{w/b}{w/b}{w/b}{w/b}, sacrifice four creatures : put target permanent card from your graveyard to your hand