Color Identity: U, R, W

Prerequisites

  1.  
    Ertha Jo, Frontier Mentor
    Ertha Jo     and
    Tidewater Minion
    Tidewater Minion     on the battlefield.
  2. Tidewater Minion
    Tidewater Minion     does not have summoning sickness.

Steps

  1. Activate
    Tidewater Minion
    Tidewater Minion    's second ability by tapping it, targeting itself.
  2. Ertha Jo, Frontier Mentor
    Ertha Jo    's second ability triggers, copying
    Tidewater Minion
    Tidewater Minion    's ability, targeting any other permanent.
  3. Resolve both
    Tidewater Minion
    Tidewater Minion     abilities, untapping it and the other targeted permanent.
  4. Repeat.

Results

  1. Infinite mana permanents you control can produce.
  2. Infinite untap of permanents you control.

Metadata

  1. In 3 decks according to EDHREC.
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