Urabrask the Hidden, Sword of Hearth and Home, and Port Razer

Prerequisites

• Urabrask the Hidden on the battlefield
• Sword of Hearth and Home on the battlefield
• Port Razer on the battlefield
• Sword of Hearth and Home attached to Urabrask
• An opponent is unable to block and kill Urabrask and Port Razer

Steps

1. Deal combat damage to an opponent with Urabrask and Port Razer, triggering Sword of Hearth and Home and Port Razer
2. Resolve the Port Razer trigger, untapping all creatures you control and causing you to get an additional combat phase after this one
3. Resolve the Sword of Hearth and Home trigger, exiling Port Razer, then causing you to search your library for a basic land card, then put the land and Port Razer onto the battlefield
4. Repeat each combat phase

Results

• Infinite combat damage
• Infinite combat phases
• Infinite ETB
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control
• Near-infinite landfall triggers
• Put all basic land cards from your library onto the battlefield