Markov Baron

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for 1 or one mana of that creature's color.)

Lifelink

Other Vampires you control get +1/+1.

Madness 2B (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)