Cheapest priced copy (Double Masters 2022): $0.35 at Card Kingdom, near mint, their price list as of .
Glowspore Shaman 
Creature — Elf Shaman · 3/1 · Common · Double Masters 2022 · #220
When this creature enters, mill three cards. You may put a land card from your graveyard on top of your library. (To mill a card, put the top card of your library into your graveyard.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
3 printings · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters 2022 | 220 | Common | $0.35 | $0.49 |
| Guilds of Ravnica | 173 | Uncommon | $0.35 | $0.79 |
| Ravnica Remastered | 184 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 5 October 2018The land card you put on top of your library may be one that you just milled or one that was already there.