No reference price for this printing yet: not enough stores to make an average.
Run a comparison: we query the stores live, it may have arrived this morning.
Other effects can prevent a permanent from untapping during an untap step. You do need to look carefully, however, as many effects say that the permanent does not untap during its controller's untap step, and this card's ability occurs during other players' untap steps. If a card does say this, then Seedborn Muse can untap it. But some other abilities are not written this way and can still prevent a card from untapping.
2004-10-04 · Wizards of the CoastAll your permanents untap during each other player's untap step. You have no choice about what untaps.
2007-07-15 · Wizards of the Coast
GameZilla · Condition LP
Fafnir's Hoard
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Play N Trade Winnipeg
Merchant's Shop · Condition MP
Bootown's Games and Hobbies · Condition MP
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