Etali, Primal Conqueror // Etali, Primal Sickness + Mortuary + 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 one mana of any color.
4. 4When Etali dies, Mortuary triggers, 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 colored mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite storm count
• Near-infinite magecraft triggers