Delvefall
Undying Flames

Undying Flames {4}{R}{R}

Sorcery

Exile cards from the top of your library until you exile a nonland card. Undying Flames deals damage to any target equal to that card's mana value.
Epic (For the rest of the game, you can't cast spells. At the beginning of each of your upkeeps, copy this spell except for its epic ability. You may choose a new target for the copy.)

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Cards that do something similar expected a card that isn't here?

Eternal Dominion
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"Epic"
Enduring Ideal
Enduring Ideal 100%
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"Epic"
Endless Swarm
Endless Swarm 100%
$1.53#18623
"Epic"
Neverending Torment
Neverending Torment 100%
$0.71#23480
"Epic"
+1 more matching line
Solstice Revelations
Solstice Revelations 96%
$0.24#7429
"Exile cards from the top of your library until you exile a nonland card. You may cast that card without paying its mana cost if the spell's mana value is less than the number of Mountains you control. If you don't cast that card this way, put it into your hand."
Improvisation Capstone
Improvisation Capstone 96%
$10.58#3874
"Exile cards from the top of your library until you exile cards with total mana value 4 or greater. You may cast any number of spells from among them without paying their mana costs."
The Day of the Doctor
The Day of the Doctor 95%
$0.27#14521
"Exile cards from the top of your library until you exile a legendary card. You may play that card for as long as this Saga remains on the battlefield. Put the rest of those exiled cards on the bottom of your library in a random order."
Venture Forth
Venture Forth 86%
$0.39#9325
"Exile cards from the top of your library until you exile a land card. Put that card onto the battlefield and the rest on the bottom of your library in a random order. Exile this card with three time counters on it."