Color Identity: R

Initial Card State
- Sandstorm Crasher and Combat Celebrant on the battlefield.
Easy Prerequisites
- Sandstorm Crasher does not have summoning sickness.
Notable Prerequisites
- An opponent cannot block and kill creatures you control.
Steps
- Declare Combat Celebrant and Sandstorm Crasher as attackers, choosing to exert Sandstorm Crasher and Combat Celebrant as they attack. Combat Celebrant and Sandstorm Crasher each trigger.
- Resolve the Sandstorm Crasher trigger, creating a token copy of Combat Celebrant that is tapped and attacking.
- Resolve the Combat Celebrant trigger, untapping all other creatures you control and causing you to get an additional combat phase after this one.
- Repeat during each combat phase using the Combat Celebrant token instead.
Results
- Infinite combat phases.
- Infinite untap of creatures you control.
- Infinite mana creatures you control can produce.
- Infinite ETB.
- Infinite creature tokens.
Bracket Tag
This combo has been estimated to be Spicy (Bracket 3-4+).