Cheapest priced copy (Tarkir: Dragonstorm Commander): $1.99 at Card Kingdom, near mint, their price list as of .
Skull Prophet 
Creature — Human Druid · 3/1 · Uncommon · Ikoria: Lair of Behemoths · #206
{T}: Add {B} or {G}.
{T}: Mill two cards. (Put the top two cards of your library into your graveyard.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $1.99 to $3.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ikoria: Lair of Behemoths | 206 | Uncommon | $2.29 | $3.99 |
| Tarkir: Dragonstorm Commander | 304 | Uncommon | $1.99 | — |