Which mag for GU/RA?

[振り子]

Hi ive got a question. I dont play PSO2 for long so I want ask you which stats I have to specialize. I would say Range and Dex but I dont know :???:

Thx for answers :)

PS: I have Fornax at the moment.

[Maninbluejumpsuit]

Pure R atk. Feed it 9* ranged weapons and 5* furniture.

[Sacrificial]

Ratk. Max 20ish DEX if you feel lazy feeding/want to equip certain items earlier.