Comic: ‘Deadpool Kills Deadpool’ #1-5 (2013)
Deadpool Killing Deadpool Because He Killed Deadpool
Little insight: Deadpool has a healing factor, so when Deadpool loses a limb, he doesn’t think anything of it; he’ll regrow the parts. Someone’s been collecting up the lost parts and making their own, evil(er) Deadpool. You meet him here. This collection of 5 issues has every Deadpool you could imagine, and some plot to stitch the whole thing together. Enjoy.