Messmer The Impaler [Level 1, +0 weapon, 0 blessing, no aux/buffs*/etc]
What I count as a buff is something that requires activation, and usually has a duration. So great rune, physick flask, golden vow, etc. This does not include talismans or armor.
I messed up a lot on the phase 2 punishes, causing him to not stagger and losing a lot of damage. Kill should've been 8-9 minutes but whatever. Ideally, you time the hits so it hits both the snake head and messmer, dealing double damage. Next best is to simply hit messmer, to contribute to poise breaks. It did not feel viable to go for double punishes with this weaponry (it barely does more damage than a jump l1 with this setup anyway)
I forgot to enable gamepad overlay, so no overlay whoops.