Cogwork Assembler, Myr Battlesphere, and Mana Echoes

Prerequisites

• Cogwork Assembler on the battlefield
• Myr Battlesphere on the battlefield
• Mana Echoes on the battlefield
• Twenty-one generic mana available
• available

Steps

1. Activate Cogwork Assembler by paying , creating a token copy of Myr Battlesphere with haste
2. When the Myr Battlesphere token enters the battlefield, it and Mana Echoes trigger
3. Resolve the Myr Battlesphere trigger, creating four 1/1 Myr artifact creature tokens
4. When the Myr enter the battlefield, Mana Echoes triggers four times
5. Resolve all Mana Echoes triggers from steps 2 and 4, adding for each Myr you control
6. Repeat
7. Once you have infinite mana, you may target any artifact instead using Cogwork Assembler's ability
8. Activate Cogwork Assembler three times by paying three times, creating three token copy of Cogwork Assembler with haste
9. The token copies of Cogwork Assembler enter the battlefield triggering Mana Echoes three times, adding twelve
10. Activate Cogwork Assembler by paying , creating a token copy of Cogwork Assembler with haste
11. The token copy of Cogwork Assembler enters the battlefield triggering Mana Echoes, adding
12. Activate Cogwork Assembler by paying , creating a token copy of Cogwork Assembler with haste
13. The token copy of Cogwork Assembler enters the battlefield triggering Mana Echoes, adding
14. Activate Cogwork Assembler by paying , creating a token copy of Cogwork Assembler with haste
15. The token copy of Cogwork Assembler enters the battlefield triggering Mana Echoes, adding at least
16. Repeat from step seven

Results

• Infinite colorless mana
• Infinite copies of any artifacts you control
• Infinite creature copies of artifacts you control
• Infinite creature tokens with haste
• Infinite ETB