Etali, Primal Conqueror // Etali, Primal Sickness + Haunted Crossroads + Phyrexian Altar

Prerequisites

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Steps

1. 1Cast Etali by paying .
2. 2When Etali enters the battlefield, it triggers.
3. 3Holding priority, activate Phyrexian Altar by sacrificing Etali, adding .
4. 4Activate Haunted Crossroads by paying , putting Etali on top of your library from your graveyard.
5. 5Resolve the Etali trigger from step 2, causing you to exile cards from each player's library until you exile a nonland card, with you exiling Etali from your library, and cast Etali and any other nonland cards exiled this way without paying their mana costs.
6. 6Repeat from step 2.

Effects

• Cast any number of spells from opponents' libraries
• Exile each opponent's library
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Near-infinite magecraft triggers