Spirit Cairn 
Enchantment
$0.12 #20981 0.00 24.3 years
Whenever a player discards a card, you may pay . If you do, create a 1/1 white Spirit creature token with flying.
. If you do, create a 1/1 white Spirit creature token with flying.Click a line or tag to filter
Cards similar to Spirit Cairn 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.
The Raven Man90%
$0.33↑#4713↑0.23↑4.0 years↓
"At the beginning of each end step, if a player discarded a card this turn, create a 1/1 black Bird creature token with flying and "This token can't block.""
Confessor84%
$0.20↑#191690.43↑24.9 years
"Whenever a player discards a card, you may gain 1 life."
Dying to Serve84%
$0.36↑#9690↑0.32↑4.8 years↓
"Whenever you discard one or more cards, create a tapped 2/2 black Zombie creature token. This ability triggers only once each turn."
Drake Haven83%
$0.33↑#8664↑0.24↑9.4 years↓
"Whenever you cycle or discard a card, you may pay 
. If you do, create a 2/2 blue Drake creature token with flying."
. If you do, create a 2/2 blue Drake creature token with flying."
Nath of the Gilt-Leaf82%
$3.01↑#12831↑0.40↑18.9 years↓
"Whenever an opponent discards a card, you may create a 1/1 green Elf Warrior creature token."
Mysterio's Mirage78%
$0.38↑#197740.000.2 years↓
"At the beginning of your end step, if you discarded a card this turn, create a 3/3 blue Illusion Villain creature token."
Hostile Investigator78%
$0.43↑#13218↑0.61↑2.4 years↓
"Whenever one or more players discard one or more cards, investigate. This ability triggers only once each turn."
Cryptcaller Chariot76%
$0.44↑#4553↑0.19↑1.6 years↓
"Whenever you discard one or more cards, create that many tapped 2/2 black Zombie creature tokens."
Aclazotz, Deepest Betrayal // Temple of the Dead75%
$8.42↑#2543↑0.71↑2.8 years↓
"Whenever an opponent discards a land card, create a 1/1 black Bat creature token with flying."
Liliana's Caress74%
$5.31↑#2412↑0.51↑16.1 years↓
"Whenever an opponent discards a card, that player loses 2 life."
Waste Not74%
$5.51↑#1241↑0.91↑12.1 years↓
"Whenever an opponent discards a creature card, create a 2/2 black Zombie creature token."
Bone Miser74%
$30.78↑#2137↑0.53↑7.0 years↓
"Whenever you discard a creature card, create a 2/2 black Zombie creature token."
Metrognome73%
$0.45↑#28684↓0.29↑27.9 years↑
"When a spell or ability an opponent controls causes you to discard this card, create four 1/1 colorless Gnome artifact creature tokens."
Sangromancer72%
$0.69↑#2002↑0.35↑15.6 years↓
"Whenever an opponent discards a card, you may gain 3 life."
Fell Specter72%
$0.34↑#4878↑0.41↑8.1 years↓
"Whenever an opponent discards a card, that player loses 2 life."
Wharf Infiltrator71%
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"Whenever you discard a creature card, you may pay . If you do, create a 3/2 colorless Eldrazi Horror creature token."
. If you do, create a 3/2 colorless Eldrazi Horror creature token."
Geth's Grimoire71%
$8.54↑#2318↑0.54↑22.6 years↓
"Whenever an opponent discards a card, you may draw a card."
Abyssal Nocturnus70%
$0.68↑#201280.27↑20.6 years↓
"Whenever an opponent discards a card, this creature gets +2/+2 and gains fear until end of turn."