Etali, Primal Conqueror + Mortuary + Phyrexian Altar
Etali, Primal Conqueror
Mortuary
Phyrexian Altar
Requires
Etali, Primal Conqueror // Etali, Primal Sickness must be in hand.
Mortuary must be on the battlefield.
Phyrexian Altar must be on the battlefield.
Mana needed: 
Steps
- Cast Etali by paying .
- When Etali enters the battlefield, it triggers.
- Holding priority, activate Phyrexian Altar by sacrificing Etali, adding one mana of any color.
- When Etali dies, Mortuary triggers, putting Etali on top of your library from your graveyard.
- Resolve 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.
- Repeat from step 2.
Results
Cast all nonland cards from each opponent's library. Exile each opponent's library. Infinite colored mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers. Infinite storm count. Near-infinite magecraft triggers.
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