Specimen Collector + Sublime Epiphany + Ashnod's Altar

Prerequisites

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Steps

1. 1Cast Sublime Epiphany by paying , creating a token copy of Specimen Collector.
2. 2The Specimen Collector token enters the battlefield, creating a 1/1 Squirrel and a 0/3 Crab creature token.
3. 3Activate Ashnod's Altar by sacrificing the nontoken Specimen Collector, adding .
4. 4Specimen Collector dies, creating a token copy of the Specimen Collector token.
5. 5Repeat from step 2.

Effects

• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite creature tokens
• Infinite death triggers