Mikaeus, the Unhallowed, Sage of Fables, and Ashnod's Altar

Prerequisites

• Mikaeus, the Unhallowed on the battlefield
• Sage of Fables on the battlefield
• Ashnod's Altar on the battlefield
• Sage of Fables does not have a +1/+1 counter on it

Steps

1. Activate Ashnod's Altar by sacrificing Sage of Fables, adding
2. When Sage of Fables dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it
3. Activate Sage of Fables by paying and removing the +1/+1 counter from it, causing you to draw a card
4. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite death triggers
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite sacrifice triggers