Grim Harvest (1/Turn).  When necromancer kills a creature that is neither a construct nor undead with a spell of 1st level or higher, the necromancer regains hit points equal to twice the spell's level, or three times if it is a necromancy spell.

Spellcasting. Zecharian is a 7nth-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 15, +7 to hit with spell attacks). Zecharian can cast disguise self and invisibility at will and has the following wizard spells prepared:

Cantrips (at will): Acid Splash, fire bolt, shape water, toll the dead

1st level (4 slots): witch bolt, identify, sleep, shield

2nd level (3 slots): ray of enfeeblement, magic weapon, web

3rd level (3 slots): counterspell, animate dead, fire bolt

4th level (1 slot): blight, dimension door

*The archmage casts these spells on itself before combat.

Withering Touch. Melee Spell Attack: +7 to hit, reach 5 ft., one creature. Hit: 5 (2d4) necrotic damage.