Gambit
Gambit is a good character overall. He can play keep away and then he can do massive damage combos like the rest of the characters. Just be sure to use his Cajun Explosion to your advantage and try to confuse the person. Mix that with a few Cajun Strikes and your opponent will never know what's about to hit them.
Special Attacks
Kinetic Cards - QCF+P
Trick Card - QCB+P
Cajun Slash - DPM+P (WP - One swipe. MP - 3 hit combo starting with an over head swing. FP - Strong 3 hit combo.)
Cajun Strike - [D],U+P or K (P = Jump off the wall and then P again to slash. K = Jump off the wall with a diving kick.)
Super Attacks
Royal Flush - QCF+2P
Cajun Explosion - QCF+2K or QCB+2K (Which ever direct your motion finishes with will be the wall that he jumps to.)
Combos
D+WK, D+MK, D+FK, DPM+MP
This is a nice small combo for the ground. Start with two kicks into a sweep then use the Cajun Slash to hit them three more times.
D+WK, D+MK, D+FK, DPM+FP
This is exactly the same as the last one only with one less hit and a tiny bit more damage.
WK, FK, QCF+WP, QCF+2P, QCB+2K or QCF+2K
This combo requires super canceling. Do two kicks into a Kinetic Card then cancel that Kinetic Card into a Royal Flush. From there, use the Cajun Explosion, but use it towards a wall that will allow the shockwave to carry the opponent for the longest time.
QCF+WP, MP, D+FP, U+WP, WK, MP, MK, FP
This is another way to set up into the launcher. Hit them at close range with a weak Kinetic Card, then hit them with a MP and quickly use a launcher. Then finish with an air combo.
(QCF+WP, MP)
This is an easy infinite. They must be in the corner and second, if you mess the timing up on this, the opponent will be able to block it. All you have to do is hit them with a weak Kinetic Card then use a MP. Cancel the MP into a weak Kinetic Card quickly and then hit them with another MP.
(WK, FK, QCF+WP)
This is another easy infinite. They must be in the corner and if you mess up the timing, then they will be able to block this. Hit them with two kicks then a weak Kinetic Card then two more kicks, so on and so forth.