These are my equipment’s

My Skills

I used earthbreaker specter when he spawn multiple baby summons 2nd time

Basically Try to headshot with free aim it will works.
If you manage to dodge this projectile game is half easy. If this hit you almost 500 damage+ 1 sec stun

I used this soup before boss fight entrance

Also used carnage potion a few times middle of fights

Thats how i killed it.

You get these two items in the picture.