Energy Field

Enchantment, 1U (2)
Prevent all damage that would be dealt to you by sources you don't control.
When a card is put into your graveyard, sacrifice Energy Field.¹
Illus. John Matson

Crystal Keep Rulings Summaries

• Buyback (see Rule 502.16) causes a spell to go to your hand instead of your graveyard, so using Buyback will avoid triggering this card to be sacrificed. [D'Angelo 1998/10/08]
• Discarding does trigger this. [DeLaney 1998/10/17]

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard
Printings (1/6)	Urza's Saga (Rare)