Champion Changes

NOTE: Have in mind that diffs can be buggy! Checking all of this can take a while...

Janna

• Zephyr [ W ] - Cooldown is now 12 seconds at all ranks (up from 12/11/10/9/8)

Kennen

• Lightning Rush [ E ] - Ability revamp:Kennen gains 10/20/30/40/50 Armor and Magic Resist,an enormous but rapidly decaying movement speed increase,and ignores unit collision for 0.5 seconds, dealing 85/125/165/205/245 (+0.6*AP) magic damage to any enemy he passes through (half damage to minions). 
  
  The duration of these effects is increased by 0.5s each time Kennen passes through a new target.
• NOTE: Those are intended changes, context below the diffs

Quinn

• Base Range is now 550 (up from 525)
• Blinding Assault [ Q ] - Now blinds enemies for 1.1/1.2/1.3/1.4/1.5 seconds (down from 1.5 seconds at all ranks)
• Tag Team [ R ] - Ability revamp -
  First Cast: Valor replaces Quinn on the battlefield as a mobile melee attacker. Valor can move through units and gains + 80/100/120 % Movement Speed, decreased gradually to + 5/10/15 % when in combat. 
  
  Second Cast: Quinn returns, replacing Valor on the battlefield, and also resetting the cooldown on Heightened Senses.
• Tag Team [ R ] - Now costs 80 mana (down from 100)
• Tag Team [ R ] - Cooldown is now 40/20/1 seconds (down from 140/110/80)
• NOTE: Those are intended changes, context below the diffs

Singed

• See the context on the changes below the diffs!

Zilean

• Heightened Learning [ Passive ] - Ability revamp -
  Increases experience gain of Zilean by 10% and bonus AP upon reaching levels 6/11/16.