Infinite artifact ETBInfinite artifact LTBInfinite artifact sacrifice triggersInfinite artifact tokensInfinite creature LTBInfinite creature ETBInfinite creature sacrifice triggersInfinite death triggersInfinite storm countInfinite card draw at the beginning of the next upkeepInfinite Blood tokensInfinite draw triggers at the beginning of the next upkeep
How it works
Cast Urza's Bauble by paying its mana cost.
Teshar triggers, returning Scrap Trawler from your graveyard to the battlefield.
Activate Urza's Bauble by tapping and sacrificing it.
Activate Shilgengar by sacrificing Scrap Trawler.
When Scrap Trawler dies, it triggers, returning Urza's Bauble from your graveyard to your hand.
Resolve the Shilgengar ability.
Repeat.
This ingenious loop relies on a clever loop of recursive recycling, where casting Urza's Bauble acts as a historic spell to trigger Teshar, Ancestor's Apostle, which in turn plucks Scrap Trawler straight out of your graveyard. Once both artifacts are in play, you sacrifice Urza's Bauble for its card-drawing effect and feed Scrap Trawler to Shilgengar, Sire of Famine's sacrifice ability to fuel your growing hoard of Blood tokens. The beauty of the system lies in Scrap Trawler's death trigger, which looks back at the lesser mana value of the sacrificed Urza's Bauble and bounces it right back to your hand so you can cast it all over again.