Luca, Problem Solver

Persist (When this permanent is put into a graveyard from the battlefield, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
When Luca, Problem Solver enters the battlefield, you may reveal the top card of
your Library. If it is a land card or a spell with converted mana cost less than 4, you may
play it without paying it's mana cost.