Cheapest priced copy (Ixalan): $22.99 at Card Kingdom, near mint, their price list as of .
Revel in Riches 
Enchantment · Rare · Ixalan · #117
Whenever a creature an opponent controls dies, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")
At the beginning of your upkeep, if you control ten or more Treasures, you win the game.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $22.99 to $69.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The List | XLN-117 | Rare | $23.99 | — |
| Ixalan Promos | 117p | Rare | $37.99 | $69.99 |
| Ixalan Promos | 117s | Rare | — | $42.99 |
| Secret Lair Drop | 1830 | Rare | — | $44.99 |
| Ixalan | 117 | Rare | $22.99 | $29.99 |
4 rulings from Wizards of the Coast
- 29 September 2017If you don't control ten Treasures as the second ability of Revel in Riches resolves, you won't win the game.
- 29 September 2017If the second ability of Revel in Riches causes you to win the game, please refrain from throwing your Treasure tokens into the air as this may distract or injure other players.
- 29 September 2017If an opponent's creature dies at the same time that Revel in Riches is destroyed, you'll get a Treasure.
- 29 September 2017If you don't control ten Treasures as your upkeep begins, the second ability of Revel in Riches won't trigger. You can't take any actions during your turn before your upkeep begins.