My initial plan was Max Attack Gear + Overcharge Star Burst, actually, but it was too slow, and I didn't have Strange Materials on-hand to to make a Condensed Fire Formula to isolate the Green Knight.
Thanks! I forgot that's what Lilliputiation does! I kept getting getting hit by it, so that was making Magic Axe OHKO-ing me.
Sir Gawain and the Green Knight ref! Nice!
Next goal: Malixinne. Plan: Overcharge something, maybe Star Burst, and Heavy Grav to take out a nice big 100+ of her HP.