Honestly, level somewhere else until you either can one-shot them or team up with a party.
Green Petites are p good, and one-shottable (and you can fire endow for bonus damage). The Geffen spotlight makes them give high base XP as well, and bounty board.
Otherwise, I just stacked attack boost stuff and used the eden staff + EA FAW + takoyaki and flywinged around in TI and shot things.
Shackle + BSB, RWC ring, EA FAW with menblatt, kingbird or physical shadow set, takoyaki, reno buff, and you're p good to go. Can also use an alt sorc for striking, an alt AB for odin's power, or whatever else to boost it up.
thanks, just did this, praying to rngsus to land on the same spot again