Ravenous Slime

{2}{G}Creature — Ooze1/1

This creature can't be blocked by creatures with power 2 or less.

If a creature an opponent controls would die, instead exile it and put a number of +1/+1 counters equal to that creature's power on this creature.

If more than one replacement effect tries to change where a dying creature ends up, that creature's controller chooses which effect applies. For example, if two players control a Ravenous Slime, a creature controlled by a third player will be exiled by the Ravenous Slime of that third player's choice, and the other Ravenous Slime won't get +1/+1 counters. (2018-07-13)
The exiled creature's last known existence on the battlefield is checked to determine its power. (2018-07-13)
A token creature can die just like a nontoken creature before ceasing to exist. Ravenous Slime can replace this by exiling the token. (2018-07-13)
If an opponent's commander would die, that player may choose to put it into the command zone from exile after Ravenous Slime's replacement effect has been applied and it has received the +1/+1 counters. (2018-07-13)
Once a creature with power 3 or greater has blocked this creature, changing the power of the blocking creature won't cause this creature to become unblocked. (2018-07-13)
If Ravenous Slime dies at the same time as an opponent's creatures, the opponent's creatures are exiled. (2018-07-13)