Spellcasting. Allele is a 20th-level Wizard. His spellcasting ability is Intelligence (spell save DC 17, +9 to hit with spell attacks). Allele has the following wizard spells prepared:
Cantrips (at will): Control Flames, Gust, Mold Earth, Prestidigitation, Shape Water
1st level (4 slots): Catapult, Feather Fall, Jump, Shield
2nd level (3 slots): Dragon's Breath, Enlarge/Reduce, Spider Climb
3rd level (3 slots): Blink, Erupting Earth, Slow, Water Breathing (as ritual)
4th level (3 slots): Control Water, Elemental Bane, Fabricate
5th level (3 slots): Animate Objects, Telekinesis, Passwall
6th level (2 slots): Flesh to stone, Tenser's Transformation
7th level (2 slots): Reverse Gravity, Sequester
8th level (1 slot): Control Weather
9th level (1 slot): Time Stop, Wish
Shapechanger. Once per short rest, Allele can cast Polymorph without expending a spell slot, targeting only himself and transforming into a beast whose challenge rating is 1 or lower.
Bite. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 6 (1d4 + 4) piercing damage, and the target must make a DC 13 Constitution saving throw, taking 10 (3d6) poison damage on a failed save, or half as much damage on a successful one.
Description
Allele is an awakened giant poisonous snake of the bush viper variety. He is very kind and generous, loves learning and teaching, and will readily answer any questions he can.
He was bred by a yuan-ti tribe and adopted as a neonate to be a pet and a companion. His yuan-ti master was experimenting with alchemy when he had Allele drink a potion that awakened him magically. Allele decided to pursue his own career in magic.