Doppelgang + Mystic Sanctuary + Tatyova, Benthic Druid

Mana needed: {12}{G}{U}

GU identity

Commander legal

The 3 combo pieces

What must be in place

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 {2}{G}.

How to execute it

  1. Cast Doppelgang by paying {12}{G}{U}, creating four token copies of Mystic Sanctuary and three other permanents that enter the battlefield untapped and can collectively tap to produce at least {2}{G}.
  2. When the tokens enter the battlefield untapped, each Mystic Sanctuary token triggers, and Tatyova triggers for each land token that entered the battlefield.
  3. Resolve all Mystic Sanctuary triggers, putting Doppelgang on top of your library from your graveyard.
  4. Resolve all Tatyova triggers, causing you to draw that many cards, including Doppelgang with the first draw, and gain that much life.
  5. Activate the four Mystic Sanctuary tokens by tapping them, adding {U}{U}{U}{U}.
  6. Activate ten of the other permanent tokens created in step 1 by tapping them, adding at least {9}{G}.
  7. Repeat.

What the combo produces