Color Identity: R

Initial Card State
- All permanents on the battlefield.
Notable Prerequisites
- Sword of Hearth and Home attached to Urabrask.
- An opponent is unable to block and kill Urabrask and Port Razer.
Steps
- Deal combat damage to an opponent with Urabrask and Port Razer, triggering Sword of Hearth and Home and Port Razer.
- Resolve the Port Razer trigger, untapping all creatures you control and causing you to get an additional combat phase after this one.
- 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.
- 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 lands from your library onto the battlefield.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).