Energy Field 
Enchantment
$1.52 #14404 0.47 28.0 years
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.
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Cards similar to Energy Field expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Personal Sanctuary92%
$0.31↓#23068↓0.21↓15.3 years↓
"During your turn, prevent all damage that would be dealt to you."
Festival of the Guildpact88%
$0.20↓#25282↓0.00↓21.0 years↓
"Prevent the next X damage that would be dealt to you this turn."
Solitary Confinement86%
$0.60↓#4025↑1.00↑24.4 years↓
"Prevent all damage that would be dealt to you."
+1 more matching line
Urza's Armor86%
$0.24↓#20775↓0.00↓28.0 years
"If a source would deal damage to you, prevent 1 of that damage."
Orbs of Warding84%
$0.67↓#132930.25↓11.3 years↓
"If a creature would deal damage to you, prevent 1 of that damage."
Shield of the Ages83%
$0.28↓#30760↓0.11↓31.4 years↑
"
: Prevent the next 1 damage that would be dealt to you this turn."
: Prevent the next 1 damage that would be dealt to you this turn."
Heart-Shaped Herb82%
$0.29↓#153600.22↓0.3 years↓
"If a source an opponent controls would deal damage to you, prevent 1 of that damage."
Pentagram of the Ages82%
$0.42↓#28005↓0.13↓31.4 years↑
"
, 
: The next time a source of your choice would deal damage to you this turn, prevent that damage."
, : The next time a source of your choice would deal damage to you this turn, prevent that damage."
Conservator82%
$0.17↓#31742↓0.05↓33.2 years↑
"
, : Prevent the next 2 damage that would be dealt to you this turn."
, : Prevent the next 2 damage that would be dealt to you this turn."
Reinforced Bulwark82%
$0.07↓#26475↓0.00↓16.5 years↓
": Prevent the next 1 damage that would be dealt to you this turn."
: Prevent the next 1 damage that would be dealt to you this turn."
Reverse Damage82%
$0.39↓#19026↓0.29↓33.2 years↑
"The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way."
Statecraft80%
$5.26↑#143360.4827.0 years
"Prevent all combat damage that would be dealt to and dealt by creatures you control."
Decorated Griffin80%
$0.18↓#28458↓0.00↓13.1 years↓
"
: Prevent the next 1 combat damage that would be dealt to you this turn."
: Prevent the next 1 combat damage that would be dealt to you this turn."
Blessed Sanctuary78%
$4.35↑#6004↑0.396.3 years↓
"Prevent all noncombat damage that would be dealt to you and creatures you control."
Glacial Chasm78%
$17.09↑#2246↑2.04↑31.4 years↑
"Prevent all damage that would be dealt to you."
Safe Passage78%
$0.12↓#10931↑0.29↓17.3 years↓
"Prevent all damage that would be dealt to you and creatures you control this turn."
Suppressor Skyguard78%
$11.33↑#9422↑0.25↓2.7 years↓
"Whenever a player attacks you, if that player has another opponent who isn't being attacked, prevent all combat damage that would be dealt to you this combat."
Eerie Interference77%
$0.23↓#9487↑0.23↓3.1 years↓
"Prevent all damage that would be dealt to you and creatures you control this turn by creatures."
Pay No Heed77%
$0.08↓#21189↓0.06↓24.7 years↓
"Prevent all damage a source of your choice would deal this turn."
Auriok Replica77%
$0.15↓#25927↓0.12↓16.1 years↓
", Sacrifice this creature: Prevent all damage a source of your choice would deal to you this turn."
, Sacrifice this creature: Prevent all damage a source of your choice would deal to you this turn."