Nex

Nex is one of high level monster and with higher Hitpoints

Protect with melee and you will be Fine

He is not in OldScape.

Drops
Torva Full Helm

Torva platebody

Torva Platelegs

Pernix Cowl

Pernix Body

Pernix Chaps

Virtus mask

Virtus Robe top

Virtus robe legs

Zartye Bow