As a test subject in the same Weapon X program that had previously given Wolverine his adamantium claws and skeleton, Wade Wilson received a healing factor that prevented his cancer from killing him.Marvel Source
Wade soon escaped the program and became a freelance mercenary using the name Deadpool, working for various criminal organizations. At times he has teamed up with heroes as well, but these attempts at "being a good guy" rarely stick for long.
Wade is mentally unstable, though whether this is a normal state or is caused by his constant state of hyper-regeneration is unknown. One side effect of his mental state is the belief that he is not a real person but actually a character in a comic book.
General playstyle/rotation:
1. From ranged, cast mini deadpool (taunts all targets, brings them together),
2. Throw stinkbomb onto mini deadpool (aoe dot)
3. Bodyslide into the middle of the pack
4. Cast foot gougers
5. Pick the toughest/highest hp enemy and make it bleed with flesh wound (one swing)
6. Follow that with three swings of Big Ol' Stab (bonus damage while bleeding)
7+. Refresh foot gougers/stink bombs as necessary, cast superior healing factor+med kit if you ever need a heal, Stop Drop and Roll if you need a CC break, and enjoy never dying because you get a free death per 1.5 min with God Mode.
This is basicly huntn4it's build I liked it a lot. honest it was just laying around when I found it!