Yuggoth, the Plague Lord

Vigilance, trample, menace
Infect (This creature deals damage in the form
of -1/-1 counters to creatures and to players in
the form of poison counters)
Whenever you draw a card, put a plague
counter on Yuggoth, the Plague Lord.
Remove X plague counters from Yuggoth: Target creature with converted mana cost
X or less gains infect.