Living Conduit

A familiar summoned by the player is able to cast spells known by the caster on it's own turn as an action. Doing so consumes two spellslots of the player instead of one.

The spell is treated as casted by your Familiar using it's Ability Scores and concentration. Howevet, spells requiring spellcasting ability use yours instead.

You need to be able to summon a familiar to get this feat.