Amberous Mage

Undead Fortitude. If damage reduces the zombie to 0 hit points, it must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, the zombie drops to 1 hit point instead.

Spellcasting. The Amberous Mage is a 5th-level spellcaster (spell save DC 15, +7 to hit with spell attacks) that needs only verbal components to cast its spells. 

Cantrips (at will): mage hand, chill touch, ray of frost

1st level (4 slots): charm person, sleep, shield

2nd level (3 slots): phantasmal force, hold person

3rd level (2 slots): lightning bolt, wall of sand

Staff. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d8 +1).

Amber Spike. Ranged Spell Attack: +9 to hit, range 30 ft., one target. Hit: 17 (2d12+4) After the Amber strike appears pshing the tagret in a random direction decided by a d8 as long as that space is not occupied and there is ground, it remains until it is destroyed. It is 5ft wide , 10 ft high and has 12AC & 15HP.