Is Sirus even possible for melee?

I can do it with almost no problems if the storms decide to not troll but im not "MELEE MELEE" more like "CASTER MELEE" (lacerate)

Blade Flurry can kill him deathless (LV.6)

The only attack that could kill me is The Mega Beam in last phase. (And that Black Hole, of course.) Other than that i can just stand and fight.

So, it possible for Blade Flurry. Other, i don't know but i believe it can. Just dodge everything he shot to you.

Oh, The best tips i got from YouTube. Is open Enemies HP. It will show which one is real Sirus in the last phase so we can hit him free for some couple second. And just don't forget Chaos resist. Very useful for entire league.