Coven

Granted to the party by the Quintessence as a reward for how we have traveled through The Titan Lands. Mechanically it is structured as a Sorcerer three levels less than the party.

If the three of us work together (ie, use an action, reaction or bonus action), then we can cast one of the coven's spells or grant one of us use of one of the coven's abilities.

See Coven Sorcerer at D&D Beyond.