Grandmother Goby, Phyrexian Altar, Bond of Insight, and Swarm Intelligence

Prerequisites

• Grandmother Goby on the battlefield
• Phyrexian Altar on the battlefield
• Bond of Insight in hand
• Swarm Intelligence on the battlefield
• available

Steps

1. Cast Bond of Insight by paying
2. Grandmother Goby and Swarm Intelligence trigger
3. Resolve the Grandmother Goby trigger, countering Bond of Inisght and creating four 1/1 Merfolk creature tokens
4. Resolve the Swarm Intelligence trigger, copying Bond of Insight
5. Resolve the copy of Bond of Insight, causing each player to mill four cards and then returning the original Bond of Insight and up to one other instant or sorcery from your graveyard to your hand
6. Activate Phyrexian Altar four times by sacrificing the four Merfolk tokens, adding
7. Repeat

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite magecraft triggers
• Infinite mill
• Infinite self-mill
• Infinite storm count
• Put all instant and sorcery cards from your graveyard and library into your hand