Satan

[Kyuubi Fox]

so I saw this monster with level 106

[SupremeTentacle]

It was probably spawned for the kamikui killing halloween event. That is how it looks when dead, so it will probably be there until maint on tuesday morning.

[Kyuubi Fox]

I tried to attack it, but it didn't take damage xD

[SupremeTentacle]

It shouldn't be taking damage cause it's dead~

Unlike what is practically every other monster in the game, Satan does not actually despawn when he dies. Instead, he just sits there, as you've already seen =P