The Pride of Hull Clade is a mythic Legendary Creature — Crocodile Elk Turtle card from Murders at Karlov Manor Promos (PMKM), collector number 172s. Current market price: — (foil $7.63), TCGplayer market prices via Scryfall.
This spell costs {X} less to cast, where X is the total toughness of creatures you control. Defender {2}{U}{U}: Until end of turn, target creature you control gets +1/+0, gains "Whenever this creature deals combat damage to a player, draw cards equal to its toughness," and can attack as though it didn't have defender.