rain
i think rain is a very good character but not an one day character to learn he has so many tools and so may tricks.
specials
teleport
his teleport can be hitten on the very few frames but it recovers fast very use full to counter projectiles and force your opponent to block making rain a very difficult character to zone. ex teleport has a hit box and can counter projectiles and punish it can also be use to trick people ho like to counter the regullar teleport with an attack.
super roundhouse
there is so many way you can use this move but the best one is mind games it kind of work like sonya's millitary stand but better ''at close'' this move will have your opponent think before they let go block. ex has has armor for a full combo this make rain a scary character to rush down when he has meter this could be the best armor move in the game.
water ball or however is call
it gives rain a combo at full screen however is very unsafe and should not be use a lot in a match if you want to win. . . unlike quan chi rain does not get a combo on trade with a fire ball this move will most likely be use for combos.
lightning
this move is what rains mid to full screen game will be all about it comes out fast and on hit it recovers fast very good to stop your opponent from putting a fire ball in the screen.
nomarls attacks
33 and 43 hit comfirmed to df3 or db2 which make it his best string to start a combo... 12f4 is good as well but the first 2 hits are high and will not hit crouching opponents .