Liquimetal Coating + Mnemonic Wall + Reset + Urza, Prince of Kroog

WU identity

Commander legal

The 4 combo pieces

What must be in place

It is an opponent's turn.
Lands you control can tap to produce at least {6}{U}{U}.

How to execute it

  1. During an opponent's turn, after their upkeep step, activate Liquimetal Coating by tapping it, causing Mnemonic Wall to become an artifact until end of turn.
  2. Activate all mana-producing lands you control by tapping them, adding at least {6}{U}{U}.
  3. Cast Reset by paying {U}{U}, untapping all lands you control.
  4. Activate Urza by paying {6}, creating a token copy of Mnemonic Wall that is a 1/1 Soldier in addition to its other types.
  5. When the Mnemonic Wall token enters the battlefield, it triggers, returning Reset to your hand from your graveyard.
  6. Repeat from step 2.
  7. If lands you control can tap to proudce at least {7}{U}{U}, this combo nets infinite mana, which can be used to activate Urza's ability infinitely and/or cast Reset choosing its other modes.

What the combo produces