In the Tower of Lost Souls mode on the Ascend path, a skeleton who uses this fighting style appears on the challenge "Irritation to Ruin" as a fairly difficult opponent because of its use of combos, but can be defeated easily by exploiting the flaws in Ivy's fighting style and the holes in the AI.
Tower of Lost Souls Details & Skills
TOLS Ascend Floor Challenge: Irritation to Ruin (Floor 41)
Weapon: Dream Blade
Skills: Venom Fang S
Auto Unblockable Attack A