Infinite card draw, Infinite damage, Infinite death triggers, Infinite ETB, Infinite LTB, Infinite sacrifice triggers
Sacrifice Flayer to Altar, adding and triggering Undying and then Flayer's damage trigger.
Pay to activate Sage of Fables, removing the counter from Flayer and drawing a card.
Note you may hold priority while the Sage of Fables draw trigger is on the stack and continue the combo without drawing cards to avoid decking.
Component Cards
How It Works
Sacrifice Flayer to Altar, adding and triggering Undying and then Flayer's damage trigger.
Pay to activate Sage of Fables, removing the counter from Flayer and drawing a card.
Note you may hold priority while the Sage of Fables draw trigger is on the stack and continue the combo without drawing cards to avoid decking.