Spell / Ability: Water Walking

This ability does that the user can walk on deep or shallow waters, that means that he can walk over laks and maybe entire seas.
If the user isnt on dry land or at waters where he can stand, at an aircraft, ship or another machinery, then he will drown and instantly die.

This ability should be used by either Murloc or Naga creatures, special hero characters or other sea creatures!
As the spell is increased so is the movement speed of the user when walking on water and the duration of the spell!

In maps with only water, the ability could be made passive, else i believe the spell should be either at a special mana cost, or it should drain mana over time.

A very interesting ability, it would fit cool in a RPG map. But an ability like this would also require alot of triggers.

I got the basic idea from Illidan Stormrages always active water walking ability and then i thought that it could be cool if non-water-hero units could do the same! Walk over miles of water and leave the boat behind!