A few days ago a new card named Supplanter of Identities was spoiled and I was wondering if you would target Medomai the Ageless with the effect of the supplanter you could take infinite turns (if you get through).

A problem I could see with this theory is that Medomai might come back before the Supplanter changes back, making the legendary rule kick in, but I'm not sure if it works like that.

So my question is if this interaction works the way I think.

1 Answer 1


If you copy a legendary creature with Supplanter of Identity, the exiled creature will return first and the legend rule kicks in.

In the turn structure, the last two steps are the End step and the Cleanup step. The creature exiled with Supplanter of Identity returns at the beginning of the end step, but Supplanter of Identity itself will remain a copy of that creature until the Cleanup step, causing the legend rule to apply.

  1. Ending Phase

512.1. The ending phase consists of two steps: end and cleanup.

  1. End Step

513.1. First, all abilities that trigger “at the beginning of the end step” or “at the beginning of the next end step” go on the stack. (See rule 603, “Handling Triggered Abilities.”)

513.2. Second, the active player gets priority. Players may cast spells and activate abilities.

This is where the exiled legendary returns. The return trigger resolves, players would get priority, the legend rule (a state-based action) kicks in.

704.3. Whenever a player would get priority (see rule 116, “Timing and Priority”), the game checks for any of the listed conditions for state-based actions,

704.5k If a player controls two or more legendary permanents with the same name, that player chooses one of them, and the rest are put into their owners’ graveyards. This is called the “legend rule.”

Lastly, the Supplanter returns to its original, if it's still on the battlefield.

  1. Cleanup Step

514.2. Second, the following actions happen simultaneously: all damage marked on permanents (including phased-out permanents) is removed and all “until end of turn” and “this turn” effects end. This turn-based action doesn’t use the stack.

Note that if there is a Mirror Gallery in play, your combo would work. Medomai's limitation of being unable to attack during extra turns only means it can't be declared as an attacker. However, it is the Supplanter that would be declared, who has no such limitation. The act of declaring it as an attacker triggers the its copy ability. Only now would it become a copy of Medomai, and it would keep attacking and creating extra turns.

  • 1
    Wouldn't the combo also not work because Medomai says it "can't attack during extra turns"?
    – Dennis_E
    Jun 24, 2016 at 10:37
  • 1
    @Dennis_E No, that wouldn't have an effect. "Can't attack during extra turns" only means it can't be declared as an attacker during extra turns. However, the Supplanter is already attacking when it copies Medomai. It's not removed from combat or anything.
    – Hackworth
    Jun 24, 2016 at 10:52
  • I totally missed the fact that the copying happens during combat. This makes sense then.
    – Dennis_E
    Jun 24, 2016 at 10:55
  • I'm a bit bummed to find out the legendary rule stops this combo, but still I'm still happy with finding this neat interaction Jun 24, 2016 at 11:01
  • It will work if Medomai is owned by the other player.
    – Ghostship
    Jun 24, 2016 at 17:29

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .