Fey Ancestry. Zabbas has advantage on saving throws against being charmed, and magic can't put Zabbas to sleep. 

Brave. Zabbas has advantage on saving throws against being frightened.

Brute. A melee weapon deals one extra die of its damage when Zabbas hits with it (included in the attack).

Spellcasting. Zabbas is a 7th-level spellcaster. His spellcasting ability is Intelligence (spell save DC 16, +8 to hit with spell attacks). Zabbas has the following wizard spells prepared:

Cantrips (at will): fire bolt, light, mage hand, prestidigitation
1st level (4 slots): burning hands, magic missile, shield
2nd level (3 slots): scorching ray
3rd level (3 slots): counterspell, fireball, lightning bolt
4th level (1 slot): fire shield, stoneskin*

*Zabbas casts these spells on himself before combat.

Multiattack. Zabbas makes two melee attacks and casts a cantrip.

Rapier. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) piercing damage plus 3 (1d6) psychic damage.

Fire Bolt (Cantrip). Ranged Spell Attack: +8 to hit, range 120 ft., one target. Hit: 11 (2d10) fire damage.

Parry. Zabbas adds 4 to its AC against one melee attack that would hit it. To do so, Zabbas must see the attacker and be wielding a melee weapon.

Zabbas Sage has 3 legendary actions that he recovers at the start of his turn.

Rapier Attack (Costs 1 Action). Zabbas one rapier attack.

Spellcasting (Costs 2 Actions). Zabbas casts a spell from his spell list.

Trauma Response (Costs 2 Actions) Zabbas reaches into the mind of a creature with 60 ft. of him. The creature must make a DC 17 Wisdom Saving Throw or become incapacitated for 1 minute. The target is brought into their mind to relive a exaggerated version of possible trauma or insecurities they may have. Fighting against the trauma they creature can make another wisdom saving throw at the end of their turn.