Barking Barnacle

Liquefy. Once per turn as an action the Barking Barnacle may turn its body to liquid and melt into the ground. Any attack, grapple or other check made against this creature while in this form is made at disadvantage due to it's liquefied state unless it deals lightning damage. Size is considered tiny while liquefied and any lightning damage done to the creature while liquefied is an auto-crit. ( Roll a d6 at top of turn. recharges on a 5-6)

Electrical Conductor.  This beast take an extra 1d4 lightning damage.

Amphibious. Can survive on land and in water.

Liquefy. creatures reduces it's self into a liquefied state. It's size is considered tiny. Any lightning damage dealt to a creature while liquefied is an auto-crit.

Barnacle Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., 1 target. Hit: (1d6 + 2) [piercing] damage and (1d4+1) [poison] damage.

Seafoam Spray. Ranged Weapon Attack: target(s) must make a DC 16 (Dexterity) saving throw. On a fail every target in a 20 ft. cone are covered in thick seafoam. At the top of their next turn targets may choose to take an action to make a strength saving throw (DC 14) to clear themselves of the foam. Attacks made against targets hit by the seafoam are made at advantage and targets covered in the foam move at half speed and attack at disadvantage due to the thick heavy foam.

Opportunity Attack.