Cheapest priced copy (The List): $2.99 at Card Kingdom, near mint, their price list as of .
Blood Clock 
Artifact · Rare · The List · #SOK-153
At the beginning of each player's upkeep, that player returns a permanent they control to its owner's hand unless they pay 2 life.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $2.99 to $12.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The List | SOK-153 | Rare | $2.99 | — |
| Saviors of Kamigawa | 153 | Rare | $4.49 | $12.99 |
3 rulings from Wizards of the Coast
- 1 June 2005A player with less than 2 life can’t pay 2 life and must return a permanent.
- 1 June 2005The choice of which permanent to return or whether to pay life is made as the triggered ability resolves.
- 1 June 2005A player who controls no permanents doesn’t need to pay 2 life (although that player can choose to do so).