After rescuing a de-aged Storm from the Shadow King, Gambit was brought back to the X-Mansion where he eventually joined the X-Men. As a mutant, Gambit possesses the ability to convert the potential energy in an object into destructive kinetic energy. Gambit utilizes this power mostly in the form of throwing kinetically charged playing cards which explode on impact, or by super charging his extendable bo staff.Marvel Source
Gambit and his fellow X-Man Rogue have an unsteady relationship, with a nearly equal mix of time together and time apart.
I like to go RF>WC>DMH. I keep them bound to D, S, and A respectively (I keep a second DMH bound to left mouse click and the roll on right mouse click) so that I can strum DSA, DSA, DSA which I find makes it easy and consistent.
Black Suits is there just because it seems the best place to sink extra points despite poor scaling. Red Suits would be amazing if it gave spirit on every hit, but seems to have a 1 second internal cooldown which really kills it.
I would also add that, especially early on, +Royal Flush gear makes leveling very easy. While leveling I find it most efficient to run/roll to the far side of large mob packs and then unload on the group which should have clustered tighter together from this.
Using this point blank against Bosses/Blues/Yellows tears them apart, but on bosses I usually kite from a distance since he's so squishy.
For leveling I used Lady Deathstrike Medallion and Maht's to help with spirit and just whatever for the other artifacts.