Anathema, Corrosive Dragon

Flying, infect. (This creature deals damage to
creatures in the form of -1/-1 counters and to
players in the form of poison counters.)
Sacrifice two others creatures: Proliferate.
(Choose any number of permanents and/or
players, then give each another counter of each
kind already there.)
"When you smell your acid it will be too late"
Jaskier, the Bard