Season 62015 -

The old mastery system was overhauled to include powerful "Keystones," such as Thunderlord’s Decree and Grasp of the Undying , which significantly impacted champion power spikes. 2. Major Features and Innovations

Riot introduced "Turret First Blood" and reduced symmetry in tower defenses to discourage the "lane-swap" meta that had become stale in professional play. Season 62015

Major reworks were applied to several ADCs to give them unique identities. Notable changes included Graves receiving his "shotgun" mechanic and Quinn gaining extreme mobility with Behind Enemy Lines . The old mastery system was overhauled to include

Season 6 introduced several systems that modernized the player experience: Major reworks were applied to several ADCs to

Mid-way through the season, the static Dragon buff was replaced by four elemental drakes (Infernal, Mountain, Cloud, Ocean), adding strategic variance to every match.

Season 6 is remembered as one of the most transformative eras in the game's history, introducing foundational mechanics still in use today while also sparking significant community debate over competitive integrity.