Excal-heim
Its spellcasting ability is Intelligence (spell save DC 14, +6 to hit with spell attacks).
It has the following spells prepared:
Iron Staff Melee Weapon Attack: +4 to hit, reach 5ft., one target. Hit: 6 1d4+4 piercing damage. Wizard's Cricket (Bonus Action) Target creature within 45ft must make a Dexterity saving throw or take 3d6 slashing damage and be knocked prone on a failed save. Alchemist's Crossbow Ranged Weapon Attack: +4 to hit, range 45/120ft., one target. Hit: 7 1d6+4 piercing damage. Medicinal Syringe Ranged Spell Attack: +6 to hit, range 45ft., one target. hit: gain 1d8+7 HP. No effect on undead or constructs.