League devs intentionally buff Cloud Drake and adjust Everfrost on the PBE - Not A Gamer
League Bug: Cloud Drake now gives players both old and new buffs - Not A Gamer
League devs are secretly testing Cloud Drake buffs ahead of huge Dragon update - Dexerto
LoL Patch 10.12 to feature Infernal, Cloud drake buffs, more - Dexerto
Preseason 2020 Gameplay: Rise of the Elements - League of Legends
Massive Cloud Drake buffs and Everfrost rework hit the League of Legends Preseason 12 PBE cycle
Season 10 Dragon Changes in League of Legends
moobeat on Twitter: "#PBE - Cloud Drake's dragon slayer bonus changed to - "+ (2/4/6)% movement speed, tripled when out of combat." https://t.co/5BZQGHRDtZ" / Twitter