Phyrexian Devourer + Timestream Navigator

Mana needed: {3}{U}{U}{U} each turn

U identity

Commander legal

The 2 combo pieces

What must be in place

You have the city's blessing.

How to execute it

  1. During your upkeep step, activate Phyrexian Devourer by exiling the top card of your library.
  2. Repeat step 1 until you have an empty library.
  3. Resolve all Phyrexian Devourer abilities, eventually causing you to sacrifice it.
  4. Activate Timestream Navigator by paying {2}{U}{U}, tapping it and putting it on the bottom of your library, causing you to take an extra turn after this one.
  5. Move to your draw step, drawing Timestream Navigator from your library.
  6. Cast Timestream Navigator by paying {1}{U}.
  7. Move to your next turn.
  8. During your upkeep step, activate Timestream Navigator by paying {2}{U}{U}, tapping it and putting it on the bottom of your library, causing you to take an extra turn after this one.
  9. Repeat from step 5.

What the combo produces