Combos with Unstable Shapeshifter

2 known combos in Commander — View Unstable Shapeshifter

Results: Infinite self-mill
Show steps
  1. Cast Mirror-Mad Phantasm by paying {3}{U}{U}.
  2. When Mirror-Mad Phantasm enters the battlefield, Unstable Shapeshifter triggers, causing Unstable Shapeshifter to become a copy of Mirror-Mad Phantasm until end of turn.
  3. Activate Unstable Shapeshifter by paying {1}{U}, shuffling Unstable Shapeshifter into your library and milling your entire library due to it not having a card named Mirror-Mad Phantasm in it.
Results: Near-infinite ETB · Infinite draw triggers · Infinite looting · Near-infinite storm count · Near-infinite self-discard triggers · Near-infinite LTB · Near-infinite death triggers
Show steps
  1. Discard a card to activate Unstable Shapeshifter's ability from Chainer, allowing you to cast a creature spell from your graveyard this turn.
  2. Cast a creature spell from your graveyard by paying {0}.
  3. Due to Infinite Reflection, that creature enters the battlefield as a copy of Unstable Shifter copying Chainer.
  4. Put that creature in the graveyard due to the legend rule.
  5. That creature entering the battlefield and dying triggers its own Chainer ability, Unstable Shapeshifter's Chainer ability, and Unstable Shapeshifter's original ability.
  6. Resolve the two Chainer triggers, failing to grant anything haste.
  7. Resolve the Liliana trigger, drawing a card.
  8. Resolve the Unstable Shapeshifter ability, causing it to become a new copy of Chainer that has not yet activated its ability this turn.
  9. Repeat.
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