Worldfire 
Sorcery
$36.10 #8179 2.20 14.1 years
Exile all permanents. Exile all cards from all hands and graveyards. Each player's life total becomes 1.
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Cards similar to Worldfire 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.
Apocalypse86%
$7.84↓#17726↓2.34↑28.9 years↑
"Exile all permanents. You discard your hand."
Decree of Annihilation78%
$2.27↓#11910↓2.10↓23.3 years↑
"Exile all artifacts, creatures, and lands from the battlefield, all cards from all graveyards, and all cards from all hands."
Identity Crisis75%
$0.34↓#25942↓1.04↓17.3 years↑
"Exile all cards from target player's hand and graveyard."
Farewell72%
$5.60↓#170↑2.134.5 years↓
"• Exile all graveyards."
Descent into Madness70%
$0.35↓#23746↓1.00↓14.3 years
"At the beginning of your upkeep, put a despair counter on this enchantment, then each player exiles X permanents they control and/or cards from their hand, where X is the number of despair counters on this enchantment."