Trample
Ochre Jelly enters with X +1/+1 counters on it.
Split — When Ochre Jelly dies, if it had two or more +1/+1 counters on it, create a token that’s a copy of it at the beginning of the next end step. The token enters with half that many +1/+1 counters on it, rounded down.
For example, if Ochre Jelly had five +1/+1 counters on it when it dies, the token you create will enter the battlefield with two +1/+1 counters on it. When that token dies, the next one you create will enter with one +1/+1 counter on it.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.