Doppelgang, and Kairi, the Swirling Sky

Prerequisites

• Doppelgang in hand
• Kairi, the Swirling Sky on the battlefield
• available

Steps

1. Cast Doppelgang by paying , creating five token copies of Kairi and of the four mana-producing permanents
2. Put all Kairi tokens into your graveyard due to the legend rule, triggering each token once
3. Resolve the first Kairi trigger, causing you to mill six cards and return Doppelgang from your graveyard to your hand
4. Resolve all remaining Kairi triggers, choosing either mode as desired
5. Activate seventeen of the mana-producing permanent tokens by tapping them, adding at least
6. Repeat

Results

• Infinite ETB
• Infinite self-mill
• Infinite storm count
• Infinite creature tokens
• Infinite magecraft triggers
• Infinite landfall triggers
• Infinite casts of instants and sorceries in your hand and graveyard
• Infinite copies of any permanent on the battlefield
• Infinite mana permanents can produce
• Return all nonland cards from your graveyard to your hand
• Put all nonland cards from your library into your hand