Mal'Ganis, Agent of Dread

Exploit, Flying.
When Mal'Ganis exploits a creature, draw X
cards and lose X life, where X was that cards
mana value.
Carrion Swarm — At the beginning of your
upkeep, chose target opponent. Until your next
turn, whenever target opponents creatures are
dealt damage by any source, those sources gain lifelink and wither.