Root Abyss Boss Mechanics

Von Bon:
2) Ranged - Visual cue is that he raises his wad/cane/staff(whatever is is), twirls it around, and it glows or charges up. Should be really easy to notice. The attack itself looks like sperm or something. // Counter: For non-mounted classes (Non-Mech, or WH), simply duck the attack. For mounted classes (Mech, WH), you must jump over the attack, and don't just jump straight up, jump towards and past it. Very powerful attack. On my Level 152 Mech (10k HP), takes out about 99% of my HP.

An easier way is just to stay behind him the entire fight.