Cheapest priced copy (Tales of Middle-earth Commander): $0.59 at Card Kingdom, near mint, their price list as of .
Gollum, Obsessed Stalker 
Legendary Creature — Halfling Horror · 1/1 · Rare · Tales of Middle-earth Commander · #428
Skulk (This creature can't be blocked by creatures with greater power.)
At the beginning of your end step, each opponent dealt combat damage this game by a creature named Gollum, Obsessed Stalker loses life equal to the amount of life you gained this turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.59 to $7.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tales of Middle-earth Commander | 26 | Rare | $0.59 | — |
| Tales of Middle-earth Commander | 109 | Rare | $2.29 | — |
| Tales of Middle-earth Commander | 428 | Rare | $3.49 | $7.99 |
2 rulings from Wizards of the Coast
- 16 June 2023Gollum, Obsessed Stalker's last ability counts the total amount of life you gained without taking into account any life you lost during that turn. For example, if you gained 3 life and lost 3 life earlier in the turn, each opponent dealt combat damage this game by a creature named Gollum, Obsessed Stalker loses 3 life.
- 16 June 2023Gollum, Obsessed Stalker's last ability counts players who were dealt combat damage by any creature named Gollum, Obsessed Stalker. It doesn't matter who controlled those creatures.