8 sec. cooldown on Lux's Ultimate : r/leagueoflegends
Ability Haste and Cooldown Reduction - What's The Difference? -
Cooldown Reduction
Cooldown Reduction Rework Into Ability Haste Slated For Season 11, and More Big Changes - Not A Gamer
Track summoner spells Know the cooldowns of the enemy laner's summoners and ults. This will make ganks and fights easier. Tell your teamm… | Life, League, Spelling
League Of Legends 'Practise Tool' To Feature Infinite Gold, Cooldown Resets And Level Locking
A weird Bug that extends champion's ability cooldowns - Not A Gamer
Release] CD Tracker + Auto Smite
You can reduce Ekko's ultimate cooldown to under 10 seconds in League of Legends - Dot Esports