Preston, the Vanisher + Sister Hospitaller + Bloodflow Connoisseur + Chord of Calling
Preston, the Vanisher
Sister Hospitaller
Bloodflow Connoisseur
Chord of Calling
Infinite +1/+1 counters on a creatureInfinite creature ETBInfinite creature LTBInfinite creature tokensInfinite death triggersInfinite recursion of creature cards in your graveyardInfinite creature sacrifice triggersInfinite lifegainInfinite lifegain triggers
How it works
Cast Chord of Calling by paying at most 6, searching your library for Sister Hospitaller and putting it onto the battlefield.
When Sister Hospitaller enters, it and Preston trigger.
Resolve the Sister Hospitaller trigger, returning an applicable target from your graveyard to the battlefield.
Holding priority, activate Bloodflow Connoisseur by sacrificing Sister Hospitaller.
Resolve the Preston trigger, creating a token copy of Sister Hospitaller that is a 0/1 Illusion.
When the Sister Hospitaller token enters, it triggers, returning Sister Hospitaller from your graveyard to the battlefield.