Infinite landfall triggersInfinite tapped copies of a specific landInfinite tapped Mountain tokensInfinite tapped Island tokensInfinite tapped Forest tokensInfinite tapped Plains tokensInfinite tapped Swamp tokens
How it works
Activate Prototype Portal by paying 0 and tapping it, creating a token copy of Razortide Bridge.
When Razortide Bridge enters the battlefield, Tiller Engine triggers, untapping it.
Activate the Razortide Bridge token by tapping it, adding .
Activate Filigree Sages by paying , untapping Prototype Portal.
Repeat.
This clever engine revolves around abusing Prototype Portal with a zero-mana artifact land like Razortide Bridge, which you imprint to pump out endless copies for free. While the token land enters the battlefield tapped, Tiller Engine immediately steps in to untap it, simultaneously clearing away any activation costs and generating infinite landfall triggers. To sustain the loop, Training Grounds swoops in to discount the activation cost of Filigree Sages down to just a single blue mana, allowing you to continually untap the Prototype Portal using the mana provided by the very Razortide Bridge tokens you are creating.