Tortured Existence + Phyrexian Altar + Quintorius, Field Historian

Prerequisites

• You have a creature card in hand and a creature card in your graveyard.

Steps

1. 1Activate Tortured Existence by paying and discarding a creature card, returning another creature card from your graveyard to your hand.
2. 2Quintorius triggers, creating a creature token.
3. 3Activate Phyrexian Altar by sacrificing the creature token, adding .
4. 4Repeat.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite self-discard triggers