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 Tanglepool Bridge.
When Tanglepool Bridge enters the battlefield, Tiller Engine triggers, untapping it.
Activate the Tanglepool Bridge token by tapping it, adding .
Activate Filigree Sages by paying , untapping Prototype Portal.
Repeat.
This elaborate loop relies on Prototype Portal having a Tanglepool Bridge exiled under it, making its token-creation cost zero mana thanks to the Bridge's mana value of zero. Because Power Artifact reduces Filigree Sages' untap ability to just {U}, you can endlessly untap Prototype Portal after each token is created. As the Tanglepool Bridge token enters, Tiller Engine's static trigger steps in to immediately untap it, allowing you to tap the token for mana to feed right back into Filigree Sages.