Chaos Unleashed

When you cast Chaos Unleashed, the DM will use a D100 or wheel. The result determines which spell you cast from among the spells you know (warlock spells, Mystic Arcanum spells, and invocations that allow spellcasting). The spell is cast without expending a spell slot, but it is cast at its base level.

If the spell requires concentration, you automatically lose concentration on any existing spells.

If you roll a natural 1 on the d20 for the attack roll or the spell fails due to a natural 20 saving throw, the spell backfires. If it’s a damage-dealing spell, you take double damage. Otherwise, the duration of the effects of the spell would be doubled.

At 5th level, the spell is cast as though one level higher than normal. This increases further at 11th and 17th levels.

This spell excludes rituals, otherwise impossible to use, or select spells at DM discretion.