Chronurgist

Arcane Abeyance (1/short rest). When they cast a spell using a spell slot of 4th level or lower, they can condense the spell’s magic into a mote. The spell is frozen in time at the moment of casting and held within a gray bead for 1 hour. This bead is a Tiny object with AC 15 and 1 hit point, and it is immune to poison and psychic damage. When the duration ends, or if the bead is destroyed, it vanishes in a flash of light, and the spell is lost. A creature holding the bead can use its action to release the spell within, whereupon the bead disappears. The spell uses their spell attack bonus and save DC, and the spell treats the creature who released it as the caster for all other purposes. Once they create a bead with this feature, they can’t do so again until you finish a short or long rest.

Spellcasting. The Chronurgist is a 10th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 16, +8 to hit with spell attacks). The [Chronurgist has following Wizard spells prepared:
Cantrips (at will): Ray of Frost, Light, Mage Hand, Sapping Sting, Prestidigitation
1st level (4 slots): Detect Magic, Expeditious Retreat, Gift of Alacrity, Mage Armor, Shield, Thunderwave
2nd level (3 slots): Blur, Fortune's Favor, Mirror Image, Misty Step
3rd level (3 slots): Counterspell, Pulse Wave
4th level (3 slots): Banishment
5th level (2 slots): Temporal Shunt

Dagger. Melee or Ranged Weapon Attack: +5 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 4 (1d4 + 2) piercing damage.