Ancient Adamantoise + Nim Deathmantle + Amulet of Vigor + Bloodflow Connoisseur
Ancient Adamantoise
Nim Deathmantle
Amulet of Vigor
Bloodflow Connoisseur
Infinite artifact ETBInfinite artifact LTBInfinite artifact sacrifice triggersInfinite artifact tokensInfinite creature LTBInfinite creature ETBInfinite colored manaInfinite creature sacrifice triggersInfinite death triggersInfinite Treasure tokensInfinite +1/+1 counters on a creature
How it works
Activate Bloodflow Connoisseur by sacrificing Ancient Adamantoise.
When Ancient Adamantoise dies, it and Nim Deathmantle trigger.
Resolve the Nim Deathmantle trigger, causing you to pay 4 to return Ancient Adamantoise from your graveyard to the battlefield and attach Nim Deathmantle to it.
Resolve the Ancient Adamantoise trigger, creating ten tapped Treasure tokens.
When the Treasures enter, Amulet of Vigor triggers ten times, untapping the Treasures.
Resolve the Bloodflow Connoisseur ability.
Activate four Treasures by tapping and sacrificing them, adding 4.