Tetsuo, Imperial Champion, Savage Beating, Invasion of Arcavios // Invocation of the Founders, Said // Done, and Relearn

Prerequisites

• Tetsuo, Imperial Champion on the battlefield
• Savage Beating in hand
• Invasion of Arcavios // Invocation of the Founders on the battlefield
• Said // Done in hand or in the graveyard
• Relearn in hand or in the graveyard

Steps

1. Declare Tetsuo as an attacker
2. Tetsuo triggers, causing you to cast Savage Beating without paying its mana cost, choosing its second mode
3. Invocation of the Founders triggers, copying Savage Beating
4. Resolve both Savage Beatings, causing you to get two additional combat phases after this one
5. Move to your first combat phase
6. Declare Tetsuo as an attacker
7. Tetsuo triggers, causing you to cast Relearn without paying its mana cost, targeting Said Invocation of the Founders triggers, copying Relearn, targeting Savage Beating
8. Resolve both Relearns, causing you to return Said and Savage Beating from your graveyard to your hand
9. Move to your second combat phase
10. Repeat steps 1 through 4 one additional time
11. Declare Tetsuo as an attacker
12. Tetsuo triggers, causing you to cast Said without paying its mana cost, targeting Relearn
13. Invocation of the Founders triggers, copying Said, targeting Savage Beating
14. Resolve both Saids, causing you to return Relearn and Savage Beating from your graveyard to your hand
15. Move to your second combat phase, and repeat from step 1

Results

• Infinite storm count
• Infinite combat phases
• Infinite untap of creatures you control
• Infinite mana creatures you control can produce
• Infinite magecraft triggers