Miirym, Sentinel Wyrm + Ganax, Astral Hunter + Goro-Goro, Disciple of Ryusei + Mana Echoes

Miirym, Sentinel Wyrm

Ganax, Astral Hunter

Goro-Goro, Disciple of Ryusei

Mana Echoes

How it works

1. Cast Ganax by paying 4.
2. When Ganax enters the battlefield, it triggers itself, Mana Echoes and Miirym.
3. Resolve the Mana Echoes trigger, adding at least CC.
4. Resolve the Ganax trigger, creating a Treasure token.
5. Resolve the Miirym trigger, creating a nonlegendary token copy of Ganax.
6. When the token Ganax enters the battlefield, it triggers itself, the nontoken Ganax, and Mana Echoes.
7. Resolve the Mana Echoes trigger, adding at least CCC.
8. Resolve both Ganax triggers, creating two Treasure tokens.
9. Move to your combat phase, and declare any modified creature you control as an attacker.
10. Holding priority, activate three Treasures by tapping and sacrificing them, adding 1.
11. Activate Goro-Goro's second ability by paying 3, creating a 5/5 Dragon Spirit creature token with flying.
12. When the Dragon Spirit enters the battlefield, it triggers Mana Echoes and both Ganax.
13. Resolve the Mana Echoes trigger, adding at least CCCC.
14. Resolve both Ganax triggers, creating two Treasure tokens.
15. Activate the Treasures by tapping and sacrificing them, adding .
16. Repeat from step 11.
17. Once you have infinite tokens, you may use Goro-Goro's first ability to give them haste.