Cant Defeat Sunrise Canyon Boss Altar

my setup
https://wynnbuilder.github.io/#4_0190Tp0pC0IZ0W80GX0Ux00A0Y20c0A0H0k0A0m00001000BM
WynnBuilder build:
> Ajax
> Mummy's Rag
> The Levee
> Galloping Spurs
> Okit
> Firecloud
> Vindicator
> Durum's Serenity
> Pulsar [f4f4]
his arrows do like 400 damage to me

 

maybe try a spellspam build so you could charge at him and then take him down with uppercuts

probably easier to dodge when you have some mana and low spellcosts

also he deals air damage so if you have a bit positive air defense that would help

lastly, have you been using health pots? you might be able to survive with what you have if you spam lv 45 pots whenever you can

 

i have prepared two pots of 420 hp heal pots
will have positive air defense when im lvl 49