Cheapest priced copy (Zendikar Rising): $0.35 at Card Kingdom, near mint, their price list as of .
Relic Golem 
Artifact Creature — Golem · 6/6 · Uncommon · Zendikar Rising · #249
This creature can't attack or block unless an opponent has eight or more cards in their graveyard.
{2}, {T}: Target player mills two cards. (They put the top two cards of their library into their graveyard.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Zendikar Rising | 249 | Uncommon | $0.35 | $0.49 |
4 rulings from Wizards of the Coast
- 25 September 2020Once Relic Golem has attacked, causing its first ability to apply by removing cards from graveyards won’t cause Relic Golem to be removed from combat.
- 25 September 2020In a multiplayer game, once an opponent leaves the game, they won’t be considered for such an effect, no matter how many cards they had in their graveyard before leaving the game.
- 25 September 2020Similarly, once Relic Golem has blocked an attacking creature, causing its first ability to apply won’t cause that attacking creature to become unblocked or remove Relic Golem from combat.
- 25 September 2020An ability that offers a bonus if an opponent has eight or more cards in their graveyard won’t provide additional benefits if more than one opponent has eight or more cards in their graveyard. There are also no additional benefits no matter how many cards are in an opponent’s graveyard, as long as there are at least eight.