General

[REBOOT] Need Advice: Training 160+ & Normal Horntail

Hey, I'm currently a Lvl 158 Ice Lightning Mage in Reboot...

I had a few questions/concerns that I hope you all may be able to answer:

1) Would I be able to solo Normal Horntail (I need the ring & earrings)? I tried at like level 152 but died pretty much the moment I got to the body. Any advice on order of parts to kill and any strategy to the fight? My buffed range is around ~85k, is it enough?

2) Where would you all recommend to train for the upcoming 2X weekend? MP3 is probably out of the question considering its popularity. I'm currently considering Ghost Ship 2, as it's the closest thing to MP3 (great for XP, Santa boxes and mesos), but not sure if it's optimal. I would train at DiPQ but I want to take advantage of the 2x drop for mesos as well. I don't think I'm strong enough to go to Oblivion 4 just yet. Any advice would be appreciated!

3) Cubing: Currently my weapon and offhand are both 15% INT (3l Unique). Are these potentials good enough or should I be recubing for % M.ATK? What else should I focus on? I understand %M.ATK is more beneficial than %INT but since both my weapon and offhand are 15%, should I still aim for %M.ATK or just cube other items (ie: emblem, badge etc.)