OOh, this is like everything I could dream of for a Kingdra-GX!
The first attack is really good, since it curves nicely. 60 for [W] is amazing, 110 for [W][W] is definitely above average, 160 for [W][W][W] is also above average (compare it with Lapras-GX or Alolan Ninetales-GX but without the drawbacks) and 210 for [W][W][W][W] sounds fair for that energy cost.
Reverse Thrust is a very versatile attack. It synergizes well with the Quagsire from the other day, and is also a good attack to pair with Glaceon-GX.
The GX attack is rather weak in comparison, but definitely has its uses. It is good in the early game, to be used as soon as your opponent has filled their bench. It softens up every target, and the damage spread enables the BUS Kingdra to come in and start sniping benchsitters and not fully evolved Stage 1s with 90 for [W].
Kingdra-GX is definitely a cool GX card, and can go in many different directions with how you play it. Being Stage 2 hurts, but Water should have a lot of tricks and support by the time Kingdra-GX gets released.