Paradox Kraken is a rare Creature — Kraken card from Alchemy: Reality Fracture (YFRA), collector number 8.
When this card is put into your graveyard from anywhere, conjure a card named Kraken Hatchling into your hand. {1}{U}: Return this card from your graveyard to the battlefield. Activate only if there are more cards in your graveyard than your library and only as a sorcery.