Recently I gathered some zeny and decided to try upgrading my flattery to +12, but there are some things that make me confused.
Is the NPC for hd carnium/bradium upgrading only active during certain events?
Same goes for HD carnium/bradium boxes - are they being sold only during 10+ upgrade events?
Are the boxes even tradeable to begin with? Or do I need to spend my own KP to get them?
What would be a reasonable amount of HD carniums for such an attempt? I plan to get 200 but I'd love to hear your experiences