Mas Terr, Plague Doctor

Deathtouch
When Mas Terr enters the battlefield, target creature other than Mas Terr gets -2/-2 until end of turn.
At the beginning of each end step, if three or
more creatures died this turn, target opponent gets a poison counter, then you lose 1 life for each poison counter put this way.
Overload {b}{b}{b}{b}{b}