You control at least one nontoken nonartifact Lhurgoyf.
You have at least one nonartifact Lhurgoyf creature card in hand.
Steps
Activate Putrid Imp by discarding a nonartifact Lhurgoyf card.
Disa the Restless' first ability triggers, putting the discarded Lhurgoyf from your graveyard onto the battlefield.
When the Lhurgoyf enters the battlefield, Cloudstone Curio triggers, returning another nontoken nonartifact Lhurgoyf from the battlefield to your hand.