Cheapest priced copy (Commander Legends): $0.59 at Card Kingdom, near mint, their price list as of .
Abomination of Llanowar 
Legendary Creature — Elf Horror · */* · Uncommon · Kaldheim Commander · #81
Vigilance; menace (This creature can't be blocked except by two or more creatures.)
Abomination of Llanowar's power and toughness are each equal to the number of Elves you control plus the number of Elf cards in your graveyard.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.59 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends | 265 | Uncommon | $0.59 | $1.49 |
| Commander Legends | 585 | Uncommon | — | — |
| Kaldheim Commander | 81 | Uncommon | $0.59 | — |
2 rulings from Wizards of the Coast
- 10 November 2020The ability that defines Abomination of Llanowar's power and toughness applies in all zones, not just the battlefield.
- 10 November 2020As long as Abomination of Llanowar is on the battlefield (and still an Elf) or in your graveyard, its ability will count itself.