Ancient Adamantoise | Nim Deathmantle | Viscera Seer

(and one other card)

Activate
Viscera Seer by sacrificing
Ancient Adamantoise.
When
Ancient Adamantoise dies, it and
Nim Deathmantle trigger.
Resolve the
Nim Deathmantle trigger, causing you to pay ({4} magic symbol) 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
Viscera Seer ability.
Activate four Treasures by tapping and sacrificing them, adding ({4} magic symbol) .
Repeat.