Fastbond + Conduit of Worlds + Sylvan Safekeeper
How it works
- Activate Sylvan Safekeeper by sacrificing a land.
- Play the land from your graveyard.
- Repeat.
This vintage-legal engine breaks wide open thanks to Fastbond, which lifts the normal restriction on your turn and lets you play any number of lands, ignoring the usual one-per-turn limit. With Conduit of Worlds sitting on your battlefield, you gain the ability to continually play those lands right back out of your graveyard as they hit the dirt. Meanwhile, Sylvan Safekeeper serves as the crucial outlet for this loop, letting you sacrifice the land you just played to feed its activated ability and send that land straight to the graveyard, setting it up to be replayed. By looping this sacrifice and replay cycle, you rack up an endless chain of landfall triggers while freeing up any lands you control that enter the battlefield untapped to churn out infinite mana.