How can you create a combo with Cogwork Assembler, Myr Battlesphere, Mana Echoes?
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[START OF COMBO]This combo can be formed with Cogwork Assembler, Myr Battlesphere, Mana Echoes

Color identity: R
Mana cost: {7}
Steps:
  1. Activate Cogwork Assembler by paying {7}, 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 {C}{C}{C}{C}{C} 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 {7} 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 {C}.
  10. Activate Cogwork Assembler by paying {7}, creating a token copy of Cogwork Assembler with haste.
  11. The token copy of Cogwork Assembler enters the battlefield triggering Mana Echoes, adding {C}{C}{C}{C}{C}.
  12. Activate Cogwork Assembler by paying {7}, creating a token copy of Cogwork Assembler with haste.
  13. The token copy of Cogwork Assembler enters the battlefield triggering Mana Echoes, adding {C}{C}{C}{C}{C}{C}.
  14. Activate Cogwork Assembler by paying {7}, 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 {C}{C}{C}{C}{C}{C}{C}.
  16. Repeat from step seven.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana
  - Infinite copies of any artifacts you control
  - Infinite creature copies of artifacts you control
  - Infinite creature tokens with haste
  - Infinite enters the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Twenty-one generic mana available.
[END OF COMBO PREREQUISITES]
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