Ventacean

Set
Moves: Geyser, Soft Water, Battering Ram, Brace

Item: Health Amulet

Ability: Protective Shell

Personality: Frail, Sluggish, V Robust

TPs: 200 Ranged Defense, 200 Melee Defense, 52 Energy, 48 Ranged Attack

Reason
200 Ranged Defenae and is so you don't take as much damage from ranged attacks, 200 Melee Defense and V Robust are so you do even more damage with Battering Ram, 52 Energy is for 5 Battering Rams(4 extra energy from leftovers) and 48 Ranged Attack for slightly more damage with Geyser. Battering Ram is your spam move, Brace is for setting up so you do even more damage with Battering Ram, Geyser is your STAB move and Soft Water makes it harder to kill.

Protective Shell is so you don't take any extra damage from critical hits.

Health Amulet is so you heal after every turn and so you heal 3/16 of your maximum health after Soft Water.