Cheapest priced copy (Lorwyn): $0.35 at Card Kingdom, near mint, their price list as of .
Benthicore 
Creature — Elemental · 5/5 · Uncommon · Lorwyn · #53
When this creature enters, create two 1/1 blue Merfolk Wizard creature tokens.
Tap two untapped Merfolk you control: Untap this creature. It gains shroud until end of turn. (It can't be the target of spells or abilities.)
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Lorwyn | 53 | Uncommon | $0.35 | $0.49 |