Cheapest priced copy (Crimson Vow Commander): $16.99 at Card Kingdom, near mint, their price list as of .
Hollowhenge Overlord 
Creature — Wolf · 4/4 · Rare · Crimson Vow Commander · #74
Flash
At the beginning of your upkeep, for each creature you control that's a Wolf or a Werewolf, create a 2/2 green Wolf creature token.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $16.99 to $18.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Crimson Vow Commander | 36 | Rare | $16.99 | — |
| Crimson Vow Commander | 74 | Rare | $18.99 | — |
One ruling from Wizards of the Coast
- 19 November 2021If you control a creature that is both a Wolf and a Werewolf, it's only counted once for Hollowhenge Overlord's triggered ability.