Cheapest priced copy (Lorwyn Eclipsed): $0.35 at Card Kingdom, near mint, their price list as of .
Prismabasher 
Creature — Elemental · 6/6 · Uncommon · Lorwyn Eclipsed · #188
Trample
Vivid — When this creature enters, up to X target creatures you control get +X/+X until end of turn, where X is the number of colors among permanents you control.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Lorwyn Eclipsed | 188 | Uncommon | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 17 November 2025Lands are normally colorless permanents, even if they tap for mana of a certain color.
- 17 November 2025The value of X is calculated when Prismabasher's last ability triggers for the purpose of defining the maximum number of target creatures. It is calculated again when the ability resolves to determine the amount of the power and toughness bonus.
- 17 November 2025The colors are white, blue, black, red, and green. Colorless is not a color.