Incase you Talking about the Abyssal Tempel Lv +39 Make sure you kill Bloodthirsy Butcher inside, it give the first & second  Boss a Buff if not killed. They marked with an X in the Mxp below. Make also sure that there is no healing Mob with you at the Boss Asura spawn after you DPS it a bit Abyssal Minios -  you can run to 1 of them and DPS it down to 1k HP and stop till Asura gets this Debuff - then you can DPS it down easy.