Adopted Hippo

Trample. At the beginning of your upkeep, put
a +1/+1 counter on adopted hippo, at the begin-
ning of your end step if adopted hippo have 6 or
more +1/+1 counters on it, you lose the game
"In 2005, Man adopted a baby hippo after rescuing
it from a river. 6 years later after years bonding, the
hippo dragged him into the same river and ate him"
@StrangeFactoid