If that permanent is destroyed this way, its controller exiles cards from the top of their library until they exile a nonland card, then they may cast that card without paying its mana cost
It doesn't help that it's often played in Izzet Prowess with a reduced mana cost, making it a versatile card for self-bounce or tempo
If the targeted creature is itself copying a permanent, Identity Thief will become whatever its copying, as modified by that copy effect
Tap Grove to put 2 +1/+1 counters on Kavu Predator
At their cheapest, copies of this card sell for around $7.50, and this Final Fantasy variant could easily sell for more
Paul was later given a Guiness World Record for the most expensive Pokemon trading card sold at a private sale