In a recent PTR build, Blizzard has added a new reward to achieving Gladiator in Season 2 – A Dragonriding Manuscript that unlocks the unique mount appearance as a Total Transformation for your Winding Slitherdrake.
This system is already in place for Dragonflight Season 1, so it just equates Season 2 to Season 1.
Win 50 3v3 games while at Elite rank during Dragonflight Season 2.
Reward changed: Reward: Gladiator Mount and Gladiator TitleReward: