Actual kill starts at 1:10 (had to include previous attempt to show the world I was on)
Rotation: swiftness - decimation - stall magic shortbow - start kill + dive + release msb + msb
The damage rotation must all be clicked. You can not use keybinds because you have to input the abilities on same tick the interface to start the fight is opened. The damage is done on a dummy with deci because you can not target cycle since that would require keybinds.