If I have March of the Machines and Soul Warden on the battlefield, what happens when I cast a non-creature artifact like Azorius Signet? When exactly does the card type change?

  • One could call the argument irrelevant because the deck with march of the machines and soul warden will lose to just about anything but catacomb slug. :-)
    – corsiKa
    Jan 20, 2014 at 15:29
  • The signet will come into play as a creature and trigger the wardens ability.
    – Neil Meyer
    Jan 21, 2014 at 12:31

1 Answer 1


Soul Warden's ability will trigger.

603.6d Normally, objects that exist immediately after an event are checked to see if the event matched any trigger conditions. [...]

That means it's the types the Signet has on the battlefield that are checked by Soul Warden's triggered ability.

604.1. Static abilities do something all the time rather than being activated or triggered. They are written as statements, and they’re simply true.

That means there isn't a moment that a non-creature artifact on the battlefield is not affected by March of the Machine.

As such, the Signet is seen as a creature by Soul Warden's triggered ability, and it will trigger.

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