8/10 . Great speed, which keeps you in the game.
However, not enough damage to go up against big hitters, if you get a slow start.
Regice is only useful late-game, where you can put 4-5 energies in discard every turn. However, the 40 minute time limit will probably be over before you get to use more than one Aqua Stream. Regice is the worst starter (I know, I was forced to start with it), so I wouldn't play it. Focus on the Dragon Pump, and whatever it combos with.
I've yet to figure out the perfect deck for this card. It didn't do well for me in BR's. It lost both times to AMU.