Armor Class 12
Hit Points 49 (11d8)
Speed 30 ft.
Saving Throws INT +6, WIS +4
Skills Arcana +6, History +6
Senses passive Perception 11
Languages any four languages
Challenge 5
Transmuter's Stone. The transmuter carries a magic stone it crafted. The stone grants it one of the following benefits while bearing the stone; the transmuter chooses the benefit at the end of each long rest:
Multiattack. The transmuter makes three Arcane Burst attacks.
Arcane Burst. Melee or Ranged Spell Attack: +6 to hit, reach 5 ft. or range 120 ft., one target. Hit: 19 (3d10 + 3) acid damage.
Transmute (Recharge 4–6). The transmuter casts alter self or changes the benefit of Transmuter's Stone if bearing the stone.
Mordenkainen Presents: Monsters of the Multiverse, p. 265