Cash Shop 90% OFF event

Best deals as far as I can tell include:
- 35 Gachapon Tickets
- 11 Premium Suprise Style Boxes
- 30 Day Hired Merchant
- Return/Superior Protection Scrolls
- 2 Vicious Hammer (you may prefer 50% hammers + slating, but for 850 nx it isn't too bad)

Honestly, I firmly believe Premium Surprise Style is the best way to make mesos with this event. For $3.40 you can get a lot of mesos selling the permanent cash shop equipment. And if you get something rare, like Luminous Cape (I got one so it's definitely in there), you're in for a pot of mesos.