Prototype Portal + Clock of Omens + Grinding Station + Vault of Whispers

Prerequisites

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Steps

1. 1Activate Prototype Portal by paying and tapping it, creating a token copy of Vault of Whispers.
2. 2The Vault of Whispers token enters, triggering Grinding Station, untapping Grinding Station.
3. 3Activate Clock of Omens by tapping the Vault of Whispers token and Grinding Station, untapping Prototype Portal.
4. 4Repeat.

Effects

• Infinite landfall triggers
• Infinite tapped land tokens