Doppelgang, and Timeless Witness

Prerequisites

• Doppelgang in hand
• Timeless Witness on the battlefield
• available

Steps

1. Cast Doppelgang by paying , creating five token copies of Timeless Witness and of the four mana-producing permanents
2. When the Timeless Witness tokens enter the battlefield, they trigger, returning Doppelgang and up to four other instant or sorcery cards from your graveyard to your hand
3. Activate seventeen of the mana-producing permanent tokens by tapping them, adding at least
4. Repeat
5. Once you have infinite tokens and mana, you may instead target any other permanents using Doppelgang

Results

• Infinite ETB
• Infinite storm count
• Infinite creature tokens
• Infinite magecraft triggers
• Infinite landfall triggers
• Return all cards from your graveyard to your hand
• Infinite mana permanents you control can produce
• Infinite copies of all permanents