Culling Arc

Stabs with a spear and attacks 2 times. Each attack deals 120% of Base Damage + 11 and applies Weaken: Burst. At 5 Burst stacks, damage increases by 20%. Damage increases by 55% against monsters. Ability to use Spiral Slash afterwards.
Spiral Slash - Spin and attack the target and any targets within range 2 times. Each attack deals 120% of Base Damage + 11 and applies Weaken: Burst. At 5 stacks, damage increases by 20%. Damage increases by 55% against monsters.
Burst lasts for 9s and each stack decreases All CC Resistances by 20. Stacks up to 5 times and does not reset after 5 stacks. The Weaken: Burst effect is the same for all skills.