Ozma, Chaotic Eidolon

Ozma enters with X +1/+1 counters, where X is the number of basic land types among lands you control.

At the beginning of your upkeep, choose one at random:

Destroy target nonland permanent.
Each opponent discards a card and loses 3 life.
Exile target nonland permanent, then return it.
Copy the next spell you cast this turn.

If Ozma would be destroyed, flip a coin. If heads, return it to the battlefield tapped.