Inspired Idea is a rare Sorcery card from Innistrad: Crimson Vow (VOW), collector number 360. Current market price: $0.19 (foil $0.23), TCGplayer market prices via Scryfall.
Cleave {3}{U}{U} (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.) Draw three cards. [Your maximum hand size is reduced by three for the rest of the game.]