Wardrobe Appearance: Rusila's Swashbuckling Tricorn

Rusila’s Swashbuckling Tricorn

Helmet ~ Costume

Available in game for free.

Rewarded from Cheevos, Puzzles and Artifacts

From the ‘Buzz Off, Saw’ cheevo for defeating Rusila Dreadblade after avoiding being hit by Buzz Saws – In the Infernal Dawn: Laethys – Level 60 Chronicle
From the ‘Scourge of the Sea’ cheevo for completing some of the Rusila Dreadblade cheevos – In the Infernal Dawn Level 50 Raid

For a full list of appearances you can visit the Wardrobe Skins List.