Dustox

You may sacrifice a creature named Cascoon rather than pay this spells mana cost.
When Dustox enters the battlefield, each player gets a poison counter for each creature they control with a bounty counter on it.
Flying, infect.
Dustox can't have -1/-1 counters placed on it.
Landfall —Whenever a land enters the battlefield
under your control, proliferate. (Choose any
number of permanents and/or players, then give each
another counter of each kind