Void Casting. As a bonus action, the void giant can infuse a spell with void magic. One creature that is hit by that spell or who fails a saving throw against that spell is stunned until the end of the creature's next turn.

Spellcasting. The void giant is an 11th-level spellcaster. Its spellcasting ability is Intelligence (save DC 16, +8 to hit with spell attacks). The void giant has the following wizard spells prepared: Cantrips (at will): chill touch, light, mending, shocking grasp 1st level (4 slots): comprehend languages, magic missile, shield 2nd level (3 slots): crown of madness, mirror image, scorching ray 3rd level (3 slots): counterspell, fly, lightning bolt 4th level (3 slots): confusion, ice storm, phantasmal killer 5th level (2 slots): cone of cold, dominate person 6th level (1 slot): disintegrate