Argaddon From Toa Floor 2 Help

Hello. I am trying to complete floor two of Tower of Ascension (I am a level 62 mage) and I can beat all the levels no problem but Argaddon's health won't drop. Is that a glitch or is there something I'm missing. I've used all of my strongest attacks and his hp won't move. Any help would be awesome! Thanks.

 

You might be using a weapon that Argaddon is resistant to, meaning you're doing very little to no damage to him. Argaddon also has quite high hpr and hp at his level iirc, so maybe you're just not doing enough damage in general.

 

I tried a different weapon and it absolutely worked. Thanks!

 

I cleared that floor with lvl 45 warrior xD
All I did was just kite him lol