Cheapest priced copy (The Hobbit): $0.35 at Card Kingdom, near mint, their price list as of .
Attercop 
Creature — Spider · 2/1 · Common · The Hobbit · #116
Reach, deathtouch
Landfall — Whenever a land you control enters, this creature gets +1/+1 until end of turn.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Hobbit | 116 | Common | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 29 June 2026A landfall ability triggers whenever a land you control enters for any reason. It triggers whenever you play a land, as well as whenever a spell or ability puts a land onto the battlefield under your control.
- 29 June 2026A landfall ability doesn't trigger if a permanent already on the battlefield becomes a land.
- 29 June 2026Whenever a land you control enters, each landfall ability of permanents you control will trigger. You can put them on the stack in any order. The last ability you put on the stack will be the first one to resolve (as a result, you can have those abilities resolve in the order of your choosing).