Bloodghast (DFT 445)

Creature — Vampire Spirit • Mana cost: {B}{B} • Aetherdrift • Rare

This creature can't block.
This creature has haste as long as an opponent has 10 or less life.
Landfall — Whenever a land you control enters, you may return this card from your graveyard to the battlefield.

Summoning it is easy. Controlling it is another matter.

Illustrated by Francisco Badilla.