The bestiary says that the Sketamari has 10,800 HP, but when fighting it with MissingN▯, I dealt 100+ HP damage numbers a second, and it took multiple minutes to die, instead of the less than 2 minutes it should've been, since 10,800 / 100 = 108, a.k.a a minute and 48 seconds, if I were really dealing at least 100 damage a second.
It couldn't have powered up since it was a -101% Curse run, making enemies spawn but not move, not even the Sketamari, so it had no chance to roll over any other enemies and power up.
Do enemies have a hidden Armor stat to reduce damage? Or something similar?