Tiger vanguard

Well this game has been really fun guys, I’m sure it’s GOTY, but I found Tiger vanguard at 9 hours of gameplay, I am at 17 now and still haven’t gotten him. I’m not asking for tips cuz I’ve heard them all and I’ve tried them all and I still can’t get him. He is too random, I have on 3 occasions gotten him to one shot and he just randomly slices me with one hit. I had a great first 9 hours with this game but I need to uninstall. Tiger vanguard literally won’t let me progress this game. It’s been fun being a part of the community but I’m not good enough to be here. I just simply cannot spend close to 10 hours on one boss, I could’ve beaten all of super Mario rpg in the time I’ve taken to kill tiger vanguard. Cheers guys maybe I’ll be back when they release an update that nerfs him.

EDIT: I fucking got him thank you to everyone who was supportive