Taric ult concept

A little birdy told me that a Taric rework is on it's way, so I have a what I hope, will be a pretty cool concept for his ult along with a bit of context, so check it out:

R: Radiance: After a 0.5 second cast time, Taric smashes his hammer, sending a dazzling shockwave in a cone, enemies hit take 250/375/500 (+0.8 AP) magic damage, decreased by up to 100% depending on their distance from Taric, enemies affected lose 10/20/30% of their resistances for 5 seconds and are CCed depending on their distance from Taric, enemies within 250 range are Knocked Back 200 units over 1.5 seconds, enemies between 250 and 450 range are stunned for 1.5 seconds and enemies between 450 and 700 range are blinded and slowed by 40% for 2 seconds. 150/135/120 second cooldown.

Now for the context and balance stuff. Taric's ultimate ability should feel like an epic, defining moment in any teamfight while still bringing something very unique to any game of League of Legends, as it should be for any gem paladin, however it's power is gated by Taric's innate lack of mobility, while it is powerful, hitting 5 people with it should be challenging, but rewarding if done right. If a tank can somehow juke Taric's ult they are offered a window to disengage or peel for affected allies, and once Taric's ult goes on its long cooldown the enemy team gains a window to play around their enemies weaknesses and force objectives or re-engage on the enemy. Taric's knock-up is very powerful and enables assassins to sneak past the helpless tanks to dispatch high priority targets, while this could be very powerful it requires almost LCS tier communication but is rewarding when pulled off correctly, but assassins should be wary as they have a brief window to spring into action and the slightest misplay could cost the team dearly. As someone who calls upon the power of gems and light it would only be fitting for Taric to have a blind in his kit, however being able to blind a champion for 2 seconds can be pretty powerful, especially if it's AoE and not extremely hard to land, placing it in his ult gives him appropriate rewards for hitting carries but doesn't take away from other champions' core fantasies either and most importantly doesn't make him overbearing in lane, plus, putting a blind on a support is just bad-ass. The dimishing damage carries over from Taric's current Dazzle ability and feels appropriate for a shockwave ability.

And thats it, Thanks for checking out my Taric ult concept and please do upvote so Rito can see this concept, I think it will be a great fit, both thematically and in-game for everyone's favourite gem knight, have a truly outrageous day!