[EDIT] Changed W and R into offensive based abilities. Reduced Passive by 4%.
Concept: Water based Mage. Can take more hits than the average caster with decent Defense, Magic Resist, and Health.
Mage, Ranged, Support
Shell Armor - Increases Defense and Magic Resist by 3%
Torrent - Shoots duel jets of water in a given direction pushed back those in it's path to the end of the water jet. Slows down units and does moderate damage.
Whirlpool - Create a powerful maelstrom in target area sucking enemies into the center before bursting at the center dealing damage.
Hydration - Attack, AP, and Attack Speed are all reduced 10% while gaining Health and Mana as well as increased Health and Mana regeneration in the duration of use (3-6 seconds)
Water Siege(Ult) - Slams columns of water to the ground in a large radius dealing significant damage.
Low - Movement, Damage, Attack Speed
Medium - AP, HP, Mana
High - Defense, Magic Resist
Uses - Whirlpool is a nice setup for both Torrent and Water Siege. Whirlpool and Torrent can buy some time for Hydration or a getaway.