Cheapest priced copy (Avatar: The Last Airbender Eternal): $2.99 at Card Kingdom, near mint, their price list as of .
Standstill 
Enchantment · Uncommon · Odyssey · #102
When a player casts a spell, sacrifice this enchantment. If you do, each of that player's opponents draws three cards.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $2.99 to $139.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mystery Booster 2 | 172 | Uncommon | $3.99 | $14.99 |
| Odyssey | 102 | Uncommon | $11.99 | $139.99 |
| IDW Comics Inserts | 7 | Rare | $12.99 | — |
| Avatar: The Last Airbender Eternal | 19 | Mythic | $2.99 | $7.99 |
One ruling from Wizards of the Coast
- 4 October 2004It only works once. If someone casts another spell after it triggers, but before that trigger resolves, then it will trigger again. The first time one of these triggers resolves, it will be sacrificed for the full effect. Any additional triggers on the stack will do nothing when they resolve because you will be unable to sacrifice it additional times.