Spellcasting. The Acolyte Ildakar is a 3rd-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 18, +10 to hit with spell attacks). The Rook Ildakar has following Wizard spells prepared:
Cantrips (at will): All (limit one Acolyte Ildakar to 4 cantrips)
1st level (4 slots): All (limit one Acolyte Ildakar to 4 1st level spells) 
2nd level (3 slots): All (limit one Acolyte Ildakar to 3 2nd level spells)
3rd level (2 slots): All (limit one Acolyte Ildakar to 2 3rd level spells) 

+1 Staff. The Acolyte Ildakar has +1 to spell save DC and spell attacks.

+1 Focus. The Acolyte Ildakar has +1 to spell save DC and spell attacks, and may cast a 1st level spell once without expending a spell slot.  

+1 Ildakarin Ring. The Acolyte Ildakar has +1 to spell save DC, spell attacks, and when making saves against spells. 

+1 Ildakarin Garb. The Acolyte Ildakar wears a piece of clothing, whether a hat or a robe, that gives it +1 to saves made against spells. The garb also provides +1 magical AC. 

Initiate. The Acolyte Ildakar can recover 2 1st-level spent spell slots, 2 2nd-level spent spell slots, and 1 3rd-level spent spell slot as a bonus action once per day. The Acolyte Ildakar can also cast cantrips as a bonus action and can concentrate on two spells at once. 

Natural Casting. The Ildakar may attempt to cast spells when out of slots. The amount of spell fatigue accumulates in the form of a DC 10 + total spell levels Constitution save each time the Ildakar attempts to cast a spell once it is out of spell slots. If the Ildakar fails the check, it is gravely injured (degree and type of injury is up to DM's discretion depending on spell and spell level), and if successful, is able to cast the spell. 

+1 Quarterstaff. Melee Weapon Attack: +4 to hit, reach 5 ft., 1 target. Hit: 4 (1d6+1) magical bludgeoning damage. 

Cantrip. The Acolyte Ildakar may cast a cantrip. 

Ildakarin of Retovas (3/day). The Acolyte Ildakar may cast 4th level counterspell once without expending a spell slot.