Obsidian Arborweave Battlegarb

2 pieces: (2) Set: Your attacks with Mangle, Maul, and Shred deal 10% additional damage as Fire damage over 4 sec.

4 pieces: (4) Set: Your finishing moves have a 20% chance per combo point to extend the duration of Berserk by 2 sec and when your Barkskin ability expires you gain an additional 10% chance to dodge for 12 sec.