Midnight's Curse

At the beginning of your upkeep, create X 2/1 blue and black raven creature tokens with flying, where X is the amount of ravens you control plus one. Then exile Midnight's Curse if an instant or sorcery spell was cast last turn, if so, draw a card.
All ravens you control attack enchanted player. (counter all spells and abilities preventing them to do so)
Midnight bears all answers.