You obviously don't know much about Gambit's powers. He would use his bo staff most likely. He's used it to effectively pin Wolverine stating, stay down, or his head would go 'BOOM'. I suggest you peruse a few books or respect threads to familiarize yourself with what Gambit can or cannot do with his mutant powers. He can charge and blow up a bus, train, giant anchor, he can blow up a lil ol Deadpool noggin. Me having to show proof of this is kind of like me having to prove to you Superman can fly. And Gambit knows very well Wade has a healing factor and that he effectively cannot die. It's no secret.
I have never seen Gambit knock someone head with his bo-staff and I know for a fact you can't prove that he can. I know Gambit is skilled and can charge his bo-staff to make an hit more affective but to think that he will just simply just knock Deadpool head off is just wrong. And you.. "He can charge and blow up a bus, train, giant anchor, he can blow up a lil ol Deadpool noggin." yet got owned by Bullseye (respectfully), you don't actually have a grasp on what Gambit is capable of and are just making up scenario's. Gambit bloodlusted might be capable of doing what your saying but the truth is (again) Deadpool can and will dodge any and all of Gambit projectiles. Deadpool's healing factor will be able to deal with any melee attacks Gambit tries to dish out. Deadpool is well and truly capable of tagging Gambit. Deadpool will be able to get in the attacks he need to keep Gambit down. Fact.