Specimen Collector + Quasiduplicate + Phyrexian Altar
Specimen Collector
Quasiduplicate
Phyrexian Altar
Requires
Specimen Collector must be on the battlefield.
Quasiduplicate must be in hand.
Phyrexian Altar must be on the battlefield.
Mana needed: 
Steps
- Cast Quasiduplicate by paying , creating a token copy of Specimen Collector.
- The Specimen Collector token enters the battlefield, creating a 1/1 Squirrel and a 0/3 Crab creature token.
- Activate Phyrexian Altar by sacrificing the nontoken Specimen Collector, adding one mana of any color.
- Specimen Collector dies, creating a token copy of the Specimen Collector token.
- Repeat from step 2.
Results
Infinite colored mana. Infinite creature tokens. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.
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