Eternal Necromancer

{1}{p/b},{t}, Put a 1/1 Black Spirit token with Flying onto the battlefield tapped under your control.
{p/b}{p/b},{t}, Return target non-legendary Undead from your graveyard to the battlefield tapped.
{b}{b}{b}{b}, Sacrifice a non-legendary Undead you control, you Gain 4 life.
Rise and serve your new queen!
-Eternal Necromancer