They could do something like WoW where a boss drops a token that you can trade in for a piece of gear. For example Turn 6 might drop an accessory plus 1 of 4 head tokens, them being SCH/WHM, WAR/PLD, BRD/DRG/MNK, and BLM/SMN. Each turn could drop 1 slot of token or 2. Dunno how it would work in FFXIV but just throwing the idea out there