Spellcasting. The abjurer is a 9th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 18, +10 to hit with spell attacks). The abjurer has the following wizard spells prepared:

Cantrips (at will): fire bolt, message, prestidigitation, shocking grasp

1st level (4 slots): alarm,* mage armor,* magic missile, shield*

2nd level (3 slots): burning hands, misty step, scorching ray, see invisibility

3rd level (3 slots): counterspell,* dispel magic,* fireball

4th level (3 slots): banishment,* dimension door, polymorph

5th level (2 slots): bigby's hand, teleportation circle

*Abjuration spell of 1st level or higher

Arcane Ward. The abjurer has a magical ward that has 23 hit points. Whenever the abjurer takes damage, the ward takes the damage instead. If the ward is reduced to 0 hit points, the abjurer takes any remaining damage. When the abjurer casts an abjuration spell of 1st level or higher, the ward regains a number of hit points equal to twice the level of the spell.

Ring of Spell Storing. The abjurer has a Ring of Spell Storing with Teleportation circle stored in it.  They can use an action to cast this spell.

Quarterstaff. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) bludgeoning damage, or 5 (1d8 + 1) bludgeoning damage if used with two hands.