Cheapest priced copy (Ice Age): $0.35 at Card Kingdom, near mint, their price list as of .
Balduvian Conjurer 
Creature — Human Wizard · 0/2 · Uncommon · Ice Age · #58
{T}: Target snow land becomes a 2/2 creature until end of turn. It's still a land.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ice Age | 58 | Uncommon | $0.35 | — |
2 rulings from Wizards of the Coast
- 1 August 2008A noncreature permanent that turns into a creature can attack, and its {T} abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn’t matter how long the permanent has been a creature.
- 1 October 2008If an affected land later loses the supertype snow, Balduvian Conjurer’s effect doesn’t end. The land will remain a creature until end of turn.