Nunu Gameplay Rework Sugestions

Base stats have not been changed between levels 1-18 due to the fact that I feel his current stats do not need to be changed.

Also I am open to any feedback on why certain things are unbalanced or under tuned.

The Link that I have supplied is to what the current state of Nunu is on the live patch.

Statistics HEALTH 598 – 2128 ATTACK DAMAGE 57 – 116 HEALTH REGEN. 8.4 – 22.0 ATTACK SPEED [*] 0.625 (+0% – 38.3%) MANA 284 – 998 ARMOR 26.4 – 85.9 MANA REGEN. 7.4 – 15.9 MAGIC RES. 32.1 – 53.4 MELEE 150 MOV. SPEED 350

Abilities: Passive: Visionary Nunu's next ability has no cost after not casting a spell after 10/7.5/5 seconds. When Nunu uses Visionary he and his allies gains movement speed for 5 seconds by 8/10/12%. (Range: 700)

Q: Consume Range 150 Bonus Range: 750 Cost: 80 Mana Cooldown: 14/13.5/12.25/11.5/10 True Damage: 450/600/725/850/1000 Self-Heal: 70/120/165/210/260 (+50% AP) Bonus Duration: 6.25/7.5/9/10/12 Bonus Attack Speed: 35% at all ranks ACTIVE: Nunu commands Willmup to take a bite out of the target minion or monster, dealing them true damage, healing himself and increasing the attack speed of the allies around Nunu.

W: Frosty Air Range: 650 Cost: 10 mana per second Slow: 40/45/50/55/60% Active(Toggle): Willump chills the air around him and slows the movement speed of the enemies around him. Mechanic: When the ability is toggled on, a circle appears on the ground while Nunu and Willump move around and slows the enemies around him.

E: Ice Blast Range: 550 Cost: 70/75/80/85/90 Mana Cooldown: 6/5.5/5/4.5/4 Magic Damage: 65/110/150/190/130(+100% AP) ACTIVE: Nunu throws a ball of ice at the target enemy, dealing them magic damage, slowing their attack speed by 25%.

R: Absolute Zero Range:700 Cost: 100 Mana Cooldown: 110/100/90 MAGIC DAMAGE: 625 / 875 / 1125 (+ 250% AP) MAXIMUM INTERRUPTED MAGIC DAMAGE: 546.9 / 765.6 / 984.4 (+ 218.75% AP) ACTIVE: Nunu channels for 3 seconds, slowing all nearby enimies' movement speed by the rank of Frosty Air and attack speed by 25% as he does so. Upon completing the channel, he deals magic damage to all enemies in the area, reduced to 12.5 - 87.5% damage if the channel was interrupted, based on how long Nunu channeled. Moving ends its effects immediately. The active of Absolute Zero does not stack with Frosty Air.