I really doubt that any gear coming out of ballista would be job changing, and I agree; I wouldn't want that to be the case. I would imagine that Ballista gear would be strictly given ballista stats that benefit them when they're only in Ballista... Somewhat how there is armor in which only takes effect inside Salvage or Assault and are good in them, but not necessary outside of the event. This type of armor could also balance the game by giving mage jobs a armor piece that gives physical damage -50% inside Ballista or give Melee jobs a -50% magic damage taken piece or Resist Sleep pieces that makes it so that 1 shot/cherry picking jobs like Corsair (Wildfire spam), Black Mages (Aeroja/Waterja/Sleepga spam when no one is looking), or Warrior/SAM who run in and Ukko you for 2000++ are balanced.
