Cheapest priced copy (Modern Horizons 3 Commander): $21.99 at Card Kingdom, near mint, their price list as of .
Barrowgoyf 
Creature — Lhurgoyf · */1+* · Rare · The List · #M3C-102
Deathtouch, lifelink
Barrowgoyf's power is equal to the number of card types among cards in all graveyards and its toughness is equal to that number plus 1.
Whenever this creature deals combat damage to a player, you may mill that many cards. If you do, you may put a creature card from among them into your hand.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $21.99 to $69.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 3 Commander | 50 | Rare | $27.99 | $69.99 |
| Modern Horizons 3 Commander | 102 | Rare | $21.99 | — |
| The List | M3C-102 | Rare | — | — |
| Secret Lair Drop (Feral Felix) | 2702 | Rare | $29.99 | $24.99 |
3 rulings from Wizards of the Coast
- 7 June 2024The ability that defines Barrowgoyf's power and toughness counts card types, not cards. If the only card in all graveyards is a single artifact creature card, Barrowgoyf will be a 2/3. If the cards in all graveyards are ten artifact cards and ten creature cards, Barrowgoyf will still be a 2/3.
- 7 June 2024Card types that can appear on cards in a graveyard are artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery. Legendary, basic, and snow are supertypes, not card types; Lhurgoyf, Forest, and Siege are subtypes, not card types.
- 7 June 2024The ability that defines Barrowgoyf's power and toughness works in all zones, not just the battlefield.