Gorblex, Slime Breaker

Trample

At the beginning of your upkeep, sacrifice a creature
and put a +1/+1 counter on Gorblex, Slime Breaker.

Ooze creature spells you control have Timeslip,
where the Timeslip cost is equal to its casting cost.
(When this permanent enters, you may pay it's
Timeslip cost. If you do, create a token that's a
copy of this permanent, only it has Vanishing 2.)