Cheapest priced copy (The List): $0.99 at Card Kingdom, near mint, their price list as of .
Energy Field 
Enchantment · Rare · Urza's Saga · #73
Prevent all damage that would be dealt to you by sources you don't control.
When a card is put into your graveyard from anywhere, sacrifice this enchantment.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.99 to $4.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The List | USG-73 | Rare | $0.99 | — |
| Urza's Saga | 73 | Rare | $3.99 | — |
| World Championship Decks 2000 | tvdl73 | Rare | $4.49 | — |
2 rulings from Wizards of the Coast
- 4 October 2004Buyback causes a spell to go to your hand instead of your graveyard, so using Buyback will avoid triggering this card to be sacrificed.
- 4 October 2004Discarding does trigger this.