Peach, Eternal Plan Canceler

Peach enters with 4 cancel counters.
Remove 1 cancel counter: Peach leaves the game.
{3}{g}: Peach is returned from exile to the battlefield with a +1/-1 counter.
{b/g}{b/g}{b/g}, say "Plans do change you know":
Target opponent discards 3 cards.
"I don't know what I'll be doing or
where I'll be doing it, but we'll have to see."