Ancient Adamantoise + Nim Deathmantle + Krark-Clan Ironworks + Bloodthrone Vampire
Ancient Adamantoise
Nim Deathmantle
Krark-Clan Ironworks
Bloodthrone Vampire
Infinite artifact ETBInfinite artifact tokensInfinite colorless manaInfinite creature ETBInfinite creature LTBInfinite creature sacrifice triggersInfinite death triggersInfinite tapped Treasure tokensInfinitely large creature until end of turn
How it works
Activate Bloodthrone Vampire 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.
Resolve the Bloodthrone Vampire ability.
Activate Krark-Clan Ironworks twice by sacrificing two Treasures, adding CCCC.