Introduction
Remy "Gambit" LeBeau is a mutant thief with the ability to charge items with kinetic energy. In MvC2 he's firmly low tier, and is pretty fun.
Colors
First row: LP, HP, A1. Second row: LK, HK, A2.
Moves List
Normal Moves
Special Moves
Super Moves
Assist Moves
Kinetic Card
Kinetic Card
Cajun Slash
Cajun Slash
crouching
The launcher assist. There's no reason to pick this.
The Basics
Keep up pressure with the Kinetic Card and the jab Slash if you can. If they superjump, throw a Trick Card. If you hit them with an AAA, throw a Trick Card at them on their way down. Run away with super jump Kinetic Cards if you need to rest, chip, or let your team recover.
His p throw is quick and can be used to tick throw people. You can otg off his throw in the corner.
Combos
cHP, Royal Flush
jLP, jLK, cLP, cLK, cHP, sj, jLP, jLK, jMP, jMK, jHP
p throw into corner, (dash if needed), cLK, cHP, (air combo)
jHK, cLK, cMK, Morrigan antiair, Trick Card, HP Kinetic Card, LP Kinetic Card, Royal Flush
Trick Card, either super
Advanced Strategy
Fun Stuff
Float Mode
Dash and then immediately do a Trick Card. Gambit will interrupt his dash in the middle of the hop while he's still in midair.
Escape Glitch
Do the 
snapback and then do a Cajun Strike to the left wall. Gambit will leave and never come back.
This is banned in tournaments. This bug was fixed in the Xbox 360 and PS3 versions of the game.