Planeswalker names and subtypes.

IMPORTANT UPDATE: This article has been updated as of the prerelease of Magic 2014 on July 13; Please refer to the revisions below. When one or more planeswalkers with the same subtype is in play, both will go to the graveyard when state-based actions are applied. How this works is different than the 'legend rule' as the name of the planesawlker does not matter. While there are still not a that many planeswalker cards, several planeswalkers have had more than one card created to represent them. As

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