Twilight Drover + Mana Echoes + Phyrexian Altar
Twilight Drover
Mana Echoes
Phyrexian Altar
Requires
Twilight Drover must be on the battlefield.
Mana Echoes must be on the battlefield.
Phyrexian Altar must be on the battlefield.
Twilight Drover has at least one +1/+1 counter on it.
Mana needed: 
Steps
- Activate Twilight Drover by paying and removing a +1/+1 counter from it, creating two 1/1 Spirit creature tokens.
- The Spirit tokens enter the batlefield, triggering Mana Echoes twice, adding at least six .
- Activate Phyrexian Altar by sacrificing a Spirit token, adding .
- Twilight Drover triggers, putting a +1/+1 counter on itself.
- Repeat.
Results
Infinite +1/+1 counters on Twilight Drover. Infinite colored mana. Infinite colorless mana. Infinite creature tokens. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.
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