Water skin armor

You can cover your whole body with hardened water that acts as a 2nd skin, and you get a +1 to ac and all bludgeoning melee attacks but -1 to all Piercing and slashing melee attacks and a -1 to all movement-based saves when you take cold damage for 1 turn and you have res to fire damage and vulnerability to lightning damage. you count as a water source for spells that require 1. you can use Ur bonus action to maintain this spell and while you maintain this spell you count as fully submerged in water that means you can drown unless you can breathe underwater