2 printings listed in our catalog, from newest to oldest.
: Add 
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: Target land you control becomes the basic land type of your choice until end of turn.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.
The affected land loses its existing land types and any abilities printed on it. It becomes the chosen basic land type and now has the ability to tap to add one mana of the appropriate color. Unstable Frontier's ability doesn't change the affected land's name or whether it's legendary or basic.
2009-02-01 · Wizards of the CoastYou choose a basic land type as the ability resolves.
2009-02-01 · Wizards of the Coast
Fetch & Shock Games
The CG Realm · Condition HP
