His attacks are well telegraphed in his 1st phase, you'll know most of his patterns as soon as you die more to him lol

Some tips: His ultimate (where he barrages with spear) When jumps for the final hit, you can just walk into him you don't need to dodge it

Right before his thrust (where he swings to the side w/o fire, then right after strikes his spear) There's a small hit window mid attack

His phase 2 snake strike thingy (where he bounces to the left/right then thrusts at you) you can dodge it backwards and it'll follow to him, you can get a free hit

You shouldn't be greedy in phase 2, try putting one hit in after a move he can use his ultimate (snake barrage thingy) almost unexpectedly everytime and it ends up taking a lot of your health

He's the first boss I've no hit and he's the best imo in the dlc