So I just tried Spoiler Father Gascoine about 6-7 more times and got him to about 20% 3 times now before getting annihilated. It's like fighting Gwyn shieldless. I'm struggling with the parry timings still. Beat him as a summon once, but I want to beat all bosses solo myself! Tough fight. I also ran out of silver bullets so I guess I gotta do some farming.