Forum:A new champion

So im here to create a new champpion for League of Legends. Don't be too harsh on me this is my first time doing this. Please leave comments on how to improve this champion. So you know how we have these amaizing booster supports like soraka and sona. I'm thinking new support that will debuff enemies, like trundle(who is the best debuffer on game). The desing would be somekinda grey giant (size wise just little bit taller than nauti) and cyan colored mushrooms on his back. The mushrooms would have zombified giant and the mushrooms would actually control the giant. He would be melee range champion so he would be tankier than normal supports. Okay so first the passive

Suggest a name: When ever you go below 33% health your mushrooms on your back will reduce champion's attack dmg around you for 10/15/20/25%. Cooldown 180 sec

Again you can suggest a name Q: You reduce target champion armor and macig resist by 5/10/15/20/25

Range about 600 and cooldown 10 sec

Now one of core reasons why this would make him greatest supports or just break the game W: Remove all buffs from target champion for 3 seconds.

Range 650 and cooldown 25sec

Now to E: Passively you gain 2charges for each dying enemy unit, max charges 50. Active effect: for every charge you reduce enemys movement speed by  X% charges. This would be something of an autoattack range

Cooldown 10 seconds

Now the ultimate:  Passively you gain 50/100/150 hp as the large mushroom on your back grows. Active effect: An aura will surround you that will sapp life from every enemy unit around you for 5 seconds and slow them for 20%

Cooldown 150sec

Let any thought would he be viable support on League and how to improve him/ work the numbers better