Sylvias The Cosmic Seer

So I was perusing the selection of support champions when I realized that there was no support based off of granting and maintaining vision.

Well, why isn't there?

So I took it upon myself to dream one up, and here he is, in concept form.

Sylvias The Cosmic Seer Support/Mage

Background (WIP): Sylvias is a young scholar who always had a great interest in the skies, particularly the night. One night whilst he is star-gazing, as strange event occurs, and Sylvias is infused with the power of the cosmos. He marvels at his new powers, and journeys to the Institute of War, joining the League of Legends when promised help to understand and hone his strange abilities, as well as the added bonus of using their observatories.

Abilities:

Star Gazer (Passive): Sylvias uses his knowledge of sight-lines to increase the vision range of his ally champions by 150 units and the vision range of any ward he places by 125 units. Range: Global

Star Dust (Q): Sylvias creates a swirl of cosmic dust in the shape of a star and sends it spiraling forward, dealing 70/95/120/145/170 + 65% AP magic damage to the first target hit and dealing 20% less damage to each consecutive targets hit (Max 3 hits) and revealing them for 2 seconds. The first target hit has it's movement speed slowed by 10/15/20/25/30% Range: 750 units Projectile Speed: 800 units per second Projectile Width: 275 units Cast Time: 0.35 seconds Cooldown: 12/11.5/11/10.5/10 seconds Mana Cost: 65 mana

Solar Flare (W): Sylvias generates a powerful sun flare at the target location, revealing a 650 unit radius and lasts 3.5/4/4.5/5/5.5 seconds. If an enemy touches the solar flare, it implodes and burns the enemy, dealing 100/135/170/205/240 + 70% AP magic damage over 3 seconds. Vision is lost upon implosion. Range: 850 units Flare Interaction Radius: 210 units Cast Time: 0.5 seconds Cooldown: 16 seconds Mana Cost: 80 mana

Shooting Star (E): Sylvias calls upon a shooting star that flies to target location, revealing 800 unit radius around it as it travels, and explodes upon reaching it's destination, revealing 1000 unit radius around target site for 5 seconds, and dealing 60/90/120/150/180 + 50% AP magic damage in a 450 unit radius around the site. Range: 1500/1900/2300/2700/3100 units Projectile Speed: 1275 units per second Cast Time: 0.4 seconds Cooldown: 50 seconds Mana Cost: 100/105/110/115/120 mana

Dawn to Dusk (R): Sylvias temporarily shifts the cosmic equilibrium, decreasing enemy vision range by 35/50/65% and removing their ally vision, as well as increasing his own allies' vision range by 20/30/40% for 5/6/7 seconds. Range: Global Cooldown: 115/105/95 seconds Mana Cost: 100 mana

Stats: HP: 395 + 75 per lvl Mana: 320 + 48 per lvl Attack Damage: 45 + 3.4 per lvl Attack Speed: 0.6 + 1.5% per lvl Movement Speed: 335 HP Regen per 5: 4.75 + 0.3 per lvl Mana Regen per 5: 5.25 + 0.7 per lvl Armor: 15 + 2.9 per lvl Magic Resist: 18 + 1.8 per lvl