Location: Arctus Ruins B3. It’s the same floor where you get the gold key.
Recommended Level: 50-55
Recommended time frame: After meeting with Mayvin at Lohgrin
This guy can deal a lot of physical damage. The solution is simply to armatize with Mikleo, and then attack him from range. Keep using Shattered Deluge (strong against undead). You won’t have any problem if you keep your range.