Liliana, Queen of Darkness

Zombies you control get +2/+2
{t},{1}: • Create a black 2/2 zombie
• Zombies you controll get +1/+1
{b}{b}{b}{b}{b}{b}: For every creature in all graveyards create a 2/2 zombie
{ut}{b}{b}{b}{b}: Summon any creature from any graveyard onto your side, it becomes a zombie including all its other types