Toggo, Goblin Weaponsmith, Clock of Omens, Prototype Portal, and Darksteel Citadel

Prerequisites

• Toggo, Goblin Weaponsmith on the battlefield
• Clock of Omens on the battlefield
• Prototype Portal on the battlefield
• Darksteel Citadel in exile

Steps

1. Activate Prototype Portal by paying and tapping it, creating a token copy of Darksteel Citadel
2. The Darksteel Citadel token enters the battlefield, triggering Toggo, creating a Rock artifact equipment token
3. Activate Clock of Omens by tapping the Darksteel Citadel token and the Rock token, untapping Prototype Portal
4. Repeat

Results

• Infinite landfall triggers
• Infinite tapped Darksteel Citadel tokens
• Infinite tapped Rock tokens