So... What will you do with those many oxes we will get from lucky boxes? (after completing the mission, obviously) Just extract them for onyx? Is there anything else to do with them?
I saved enough Ox so I can make them +6 in case they add extra Ox missions later, than extract for onyx or get extra carta.
For the ox I've leveled, I'll just keep them for the time being.The dark ox doesn't seem to come out all that often from the random boxes. If i have to I'll wait till the last day to use the ox select boxes in my custody. I'd rather select those platinum summon tickets.