Cheapest priced copy (The Lord of the Rings: Tales of Middle-earth): $0.49 at Card Kingdom, near mint, their price list as of .
The Balrog, Flame of Udûn 
Legendary Creature — Avatar Demon · 7/7 · Rare · The Lord of the Rings: Tales of Middle-earth · #297
Trample
When a legendary creature an opponent controls dies, put The Balrog on the bottom of its owner's library.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.49 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Lord of the Rings: Tales of Middle-earth | 297 | Rare | $0.49 | — |
| The Lord of the Rings: Tales of Middle-earth | 395 | Rare | $2.99 | — |
| Tales of Middle-earth Deluxe Commander Kit | 4 | Rare | — | $0.49 |
One ruling from Wizards of the Coast
- 16 June 2023The Balrog, Flame of Udûn will be put on the bottom of its owner's library only if it's still on the battlefield when the ability resolves. If it leaves the battlefield before that point, it will stay in whatever zone it's in, even if it's returned to the battlefield before the ability resolves.