Deadpool Vol. 10: Evil Deadpool
What would happen if a collection of Deadpool's frozen, severed body parts were to be thrown into a dumpster and then, once thawed, fuse together to form a new - and totally evil - Deadpool? Well, we could tell you - but it'd be way cooler if you read it for yourself! Collecting DEADPOOL (2008) #45-49 and #49.1.