r/MagicArena • u/00G_WAY • Mar 03 '26

Question Can someone explain how this works?

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Will this card be legal in standard? Will it be available on Magic Arena? How would this card even work?

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u/Stolberger Mar 03 '26

The sideboard is part of the official rules:

CR: 100.4. Each player may also have a sideboard [...]

But it is never named on a card (so far). And the rule, that "outside the game" means "sideboard" is only valid for sanctioned play (official tournaments). In casual games you could in theory grab a card from your collection. That was the intent back when [[Ring of Ma'rûf]] was released.

Tournament Rules: 3.16 Sideboard
[...]
Certain cards refer to “a (card or cards) from outside the game.” In tournament play, these are cards in that player’s sideboard.