Tatyova, Benthic Druid + Doppelgang + Mystic Sanctuary Combo

Doppelgang in hand.

Tatyova and Mystic Sanctuary on the battlefield.

You control at least two additional Islands. You control at least three additional permanents that enter the battlefield untapped and can collectively tap to produce at least .

available

Cast Doppelgang by paying , creating four token copies of Mystic Sanctuary and three other permanents that enter the battlefield untapped and can collectively tap to produce at least .

When the tokens enter the battlefield untapped, each Mystic Sanctuary token triggers, and Tatyova triggers for each land token that entered the battlefield.

Resolve all Mystic Sanctuary triggers, putting Doppelgang on top of your library from your graveyard.

Resolve all Tatyova triggers, causing you to draw that many cards, including Doppelgang with the first draw, and gain that much life.

Activate the four Mystic Sanctuary tokens by tapping them, adding .

Activate ten of the other permanent tokens created in step 1 by tapping them, adding at least .

Repeat.

Infinite card draw

Significant lifegain

Significant lifegain triggers

Infinite draw triggers

Significant storm count

Significant landfall triggers

Significant magecraft triggers

Significant copies of all permanents

Significant Island tokens

Significant mana permanents you control can produce