Grim Harvest. Once per turn when Oreioth kills one or more creatures with a spell of 1st level or higher, he regains hit points equal to twice the spell's level.
Swift Animation (Recharges after a Long Rest). When a living Medium or Small humanoid within 30 feet of Oreioth dies, he can use an action on his next turn to cast animate dead on that humanoid's corpse, instead of using the spell's normal casting time.
Spellcasting. Oreioth is a 6th-level spellcaster. His spellcasting ability is Intelligence (spell save DC 13, +5 to hit with spell attacks). He has the following wizard spells prepared:
Cantrips (at will): chill touch, minor illusion, prestidigitation, shocking grasp
1st level (4 slots): false life, mage armor, magic missile, ray of sickness
2nd level (3 slots): crown of madness, misty step
3rd level (3 slots): animate dead, vampiric touch
Dagger. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit:3 (1d4 + 1) piercing damage.
A lean, black-bearded young noble from Baldur's Gate, Oreioth is more at home among the dead than the living. He was cruel almost from the time he could talk, catching small creatures and killing them in hideously inventive ways to savor the power of life and death. He grew to be an embarrassment to his well-off family, who paid a tutor to channel his undeniable intelligence and curiosity into more positive outlets. They didn't know they had apprenticed the young Oreioth to a necromancer in…