Riddle of Lightning {3}{R}{R}
Instant
Choose any target. Scry 3, then reveal the top card of your library. Riddle of Lightning deals damage equal to that card's mana value to that permanent or player.
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Cards that do something similar 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.
Erratic Explosion 87%
$0.14#24436
"Choose any target. Reveal cards from the top of your library until you reveal a nonland card. this card deals damage equal to that card's mana value to that permanent or player. Put the revealed cards on the bottom of your library in any order."
Explosive Revelation 85%
$0.10#26297
"Choose any target. Reveal cards from the top of your library until you reveal a nonland card. this card deals damage equal to that card's mana value to that permanent or player. Put the nonland card into your hand and the rest on the bottom of your library in any order."