Specimen Collector + Cackling Counterpart + Altar of Dementia

Prerequisites

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Steps

1. 1Cast Cackling Counterpart by paying , creating a token copy of Specimen Collector.
2. 2When the Specimen Collector token enters the battlefield, its first ability triggers, creating a 1/1 Squirrel and a 0/3 Crab creature token.
3. 3Activate Altar of Dementia by sacrificing the nontoken Specimen Collector.
4. 4When Specimen Collector dies, its second ability triggers, creating a token copy of the Specimen Collector token.
5. 5Repeat from step 2.
6. 6Resolve all Altar of Dementia abilities, causing any number of players to mill infinite cards.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite creature tokens
• Infinite death triggers
• Infinite mill
• Infinite self-mill