You see a slick water elemental
- BLUUUUB
- SPLISH SPLASH
Abilities
Melee (0-175+), Snowball (Drown damage 180-235+), Ice Strike (80-120), Poison Storm up to 12hp/turn, Self Healing.
Damage Taken From Elements
Physical 
Death 
Holy 
Ice 
Fire
Energy
Earth
Location
The Elemental Spheres Quest, Paladin's part - Ice Sphere.
Behaviour
Slick Water Elementals fight until death.
Strategy
If you don't mind using 210 cap you can use Helmet of the Deep to block water based attack. Paladins: You can hunt these easily using a combination of Enchanted Spear/Assassin Star and Divine Missile. Simply treat this as you would treat a Water Elemental.