Aberration

Game version 1.2.7. Prose checked against 1.2.7.

Attack type: acid. Samples are normal non-boss monsters at the tier endpoints. NG+, server mods and special encounters change live values.

Monster tier samples
TierLevel rangeHP at min / maxStrength at min / maxDefence at min / maxAbilities
Ooze3 - 15220 / 153210 / 743 / 29Corrosion
Slime16 - 322738 / 5760132 / 27254 / 110Corrosion, Split
Gelatinous Cube33 - 558334 / 13884389 / 634157 / 263Engulf, Corrosion
Elder Ooze56 - 8017851 / 23370816 / 1055346 / 497Engulf, Corrosion, Absorb
Shoggoth81 - 10029864 / 356131350 / 1597645 / 796Engulf, ShapeShift, Madness
Spoiler: family lore

Aberrations are mistakes - things that slipped through when Manwe created reality. They exist outside natural law, their very presence an affront to creation. The scholars say they came from the same Void as the demons, but are far older.