Energy Field 
Enchantment
$1.88 #14303 0.23 27.9 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%
$0.29↓#22903↓0.57↑15.1 years↓
"During your turn, prevent all damage that would be dealt to you."
Festival of the Guildpact88%
$0.22↓#25054↓0.54↑20.9 years↓
"Prevent the next X damage that would be dealt to you this turn."
Solitary Confinement86%
$0.50↓#4027↑0.82↑24.3 years↓
"Prevent all damage that would be dealt to you."
+1 more matching line
Urza's Armor86%
$0.24↓#20570↓0.2827.9 years
"If a source would deal damage to you, prevent 1 of that damage."
Orbs of Warding84%
$0.56↓#131370.06↓11.1 years↓
"If a creature would deal damage to you, prevent 1 of that damage."
Shield of the Ages83%
$0.24↓#30510↓0.00↓31.3 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%
$0.25↓#168010.00↓0.2 years↓
"If a source an opponent controls would deal damage to you, prevent 1 of that damage."
Pentagram of the Ages82%
$0.43↓#27693↓0.1831.3 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%
$0.16↓#31527↓0.2733.1 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↓#26441↓0.2716.4 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."
Reverse Damage82%
$0.41↓#18864↓0.45↑33.1 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."
Pay No Heed80%
$0.09↓#21031↓0.3224.6 years↓
"Prevent all damage a source of your choice would deal this turn."
Statecraft80%
$4.07↑#141470.54↑26.9 years
"Prevent all combat damage that would be dealt to and dealt by creatures you control."
Decorated Griffin80%
$0.11↓#28051↓0.00↓12.9 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."
Azorius Ploy79%
$0.18↓#26937↓0.1720.3 years↓
"Prevent all combat damage target creature would deal this turn."
Safe Passage78%
$0.11↓#10820↑0.60↑17.1 years↓
"Prevent all damage that would be dealt to you and creatures you control this turn."
Blessed Sanctuary78%
$4.21↑#5916↑0.42↑6.1 years↓
"Prevent all noncombat damage that would be dealt to you and creatures you control."
Glacial Chasm78%
$21.51↑#2231↑1.99↑31.3 years↑
"Prevent all damage that would be dealt to you."
Invulnerability78%
$0.30↓#26094↓0.07↓28.9 years
"The next time a source of your choice would deal damage to you this turn, prevent that damage."
Suppressor Skyguard78%
$11.89↑#9219↑0.192.5 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."