Reveillark | Body Double | Viscera Seer

Cards

Reveillark in your graveyard.
Body Double and
Viscera Seer on the battlefield (
Body Double as a copy of
Reveillark).

Activate
Viscera Seer by sacrificing
Body Double.
When
Body Double leaves the battlefield, it triggers its
Reveillark ability, returning itself from your graveyard to the battlefield as a copy of
Reveillark.
Resolve the
Viscera Seer ability.
Repeat.