Terkvo's Conduit

A legendary cleric of both discipline and mercy,  first devised this spell during a moment of heavy desperation, when the paladin companion exhausted her divine power mid-battle. Without hesitation, he poured his own magic into her, reigniting the sacred flame in her heart. Her next strike turned the tide of the battle.

You expend a spell slot of 2nd level or higher and choose a willing creature within range who has the Spellcasting feature. That creature regains one expended spell slot that is one level lower than the spell slot you sacrificed. For example, if you cast Terkvo's Conduit using a 6th level slot, the target regains one 5th level slot.

The recipient cannot regain a spell slot of a level they do not have access to, nor can they exceed their maximum slots. You cannot use this spell to restore your own spell slots. If you cast this spell without using a spell slot, it has no effect.