Bubble Beam

You shoot a concentrated stream of bubbles at a single creature in range. Make a ranged attack roll, doing 1d10 + MOVE water damage on a hit. On natural attack rolls of 19 or 20, the target's speed is halved until the end of their next turn.

At Higher Levels: The damage dice roll for this move changes to 2d8 at level 5, 5d4 at level 10, and 4d8 at level 17.