Stormsurge

Your body is composed of elemental water, barely kept together by your mortal nature. You gain the following benefits:
You ignore difficult terrain caused by water, mud, snow, or other liquid besides lava.
While swimming, you may take the Dash or Disengage actions as bonus actions on your turn.
Whenever you take the Disengage action on your turn, you can choose to dissolve into water for the duration of your movement. During this movement, you can pass through another creature's space or gaps as small as 1 inch, though you can't willingly end your movement there.