Banner of Command [Rework Idea]

Banner of Command Cost: 2500 Gold

Stats: Base Stats +75% Base Mana Regen. +75% Base Health Regen. 20 Armor 20 Magic Ressist. Unique Passive: Haste: +10% Cooldown Reduction. Unique Passive: War Banner: Place a Banner with 3 health Points and 2 Shield Points. (Shield points can regenerate when not attacked for 10 sec) Minions around the banner get Promoted gaining Unique bonus Stats.

Meele: 10% Damage Reudction against Champions. 20% Damage Reduction against enemy Minions and Pet-Type-Minions. 30% Damage Reduction against Towers. Caster: 25% Increased attack speed. 20% Increased damage against enemy Champions. 25% of Damage converted to truedamage against turrets. Siege: +150 Bonus Range. -25% Attackspeed. +50% Damage against Champions and Turrets. The banner lasts for 30 - 120 sec (based on level). Cooldown 120 sec. (Cooldown starts at the moment the active banner dies.) (Only one War Banner can be placed at the same area) This is just a quick idea, but League of Legends already Introduced an similiar version ALREADY!?! RITO PLS, i mean just change Banner of Command with Vanguard Banner from "Nexus Siege" i mean COME ONE! u.u

I hope i get an response from someone from Rito xD And tell me how you like this idea? Does it fit the Support theme? Is it abuseable?.