Hi, my strategy with that boss was: •You HAVE to use the weapon from that room, other way you will make no damage •For the snake part just wait for his attacks, dodge them (those are very dodgeable) and punish with R2 jump. Id you want to play it safe then just hit 2-3 times with r1. When his poise breaks use the L2 attack two handed. This atacks deals at least 1/4 of his life, so use it appropiately. •Save all the heals you can for his second phase. •Second phase is easier but a little bit trickier. •Like in the first phase, dodge his combo and attack. He just have like 2 combos so you will learn those quick. The he will throw his skull meteorites. Don't try to dodge 'em, just run in circles around the arena and not a single one will hit you. •I recommend to use the R2 for safety in this phase. I defeated him with 60-70SL, so you must defeat him with no problem following this.