13 (16 with mage armor)
127 (15d8 + 60)
30 ft.
Con +9, Wis +5, Int +15
Arcana +15, History +15, Investigation +15, Perception +5
Common, Elvish, Draconic, Giant
15
Oswald can use an action to consume the reserve of transmutation magic stored within his transmuter's stone in a single burst. When he does so, he can choose on of the following effects. His transmuter's stone is destroyed and can't be remade until he finishes a long rest. Major Transformation. He can transmute one nonmagical object-no larger than a 5-foot cube-into another nonmagical object of similar size and mass and of equal or lesser value. He must spend 10 minutes handling the object to transform it. Panacea. He removes all curses, diseases, and poisons affecting a creature that he touches with the transmuter's stone. The creature also regains all its hit points. Restore Life. He casts the raise dead spell on a creature he touches with the transmuter's stone, without expending a spell slot or needing to have the spell in his spell book. Restore Youth. He touches the transmuter's stone to a willing creature, and that creature's apparent age is reduced by 3d10 years, to a minimum of 13 years. This effect doesn't extend the creature's lifespan.
He can temporarily alter the physical properties of one nonmagical object, changing it from one substance to another. He performs a special alchemical procedure on one object composed entirely of wood, stone (but not a gemstone), iron, copper, or silver, transforming it into a different one of those materials. For each 10 minutes he spends performing the procedure, he can transform up to 1 cubic foot of material. After 1 hour, or until he loses his concentration, the material reverts to its original substance.
He can cast the polymorph spell without expending a spell slot. When he does so, he can only target himself and transform into a beast whose challenge rating is 1 or lower. Once he casts polymorph in this way, he can't do so again until he finishes a short or long rest.
Oswald is a 20th-level wizard. His spellcasting ability is Intelligence (spell save DC 23, +15 to hit with spell attacks). He has the following wizard spells prepared: • Cantrips (at will): fire bolt, light, mage hand, message, prestidigitation • 1st level (4 slots): expeditious retreat, feather fall, longstrider, magic missile, shield • 2nd level (3 slots): alter self, darkvision, invisibility, misty step, scorching ray, spider climb • 3rd level (3 slots): counterspell, fireball, gaseous form, haste, meld into stone, water breathing • 4th level (3 slots): fabricate, polymorph, stone shape • 5th level (3 slots): animate objects, control wind, modify memory, passwall, raise dead • 6th level (2 slots): flesh to stone, wind walk • 7th level (2 slots): etherealness, reverse gravity • 8th level (1 slot): control weather, mind blank • 9th level (1 slot): gate
Melee Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d12 + 1) bludgeoning damage plus 22 (5d8) force damage.