River's Grasp 
Sorcery
$0.22 #30161 0.40 18.3 years
If 
was spent to cast this spell, return up to one target creature to its owner's hand. If 
was spent to cast this spell, target player reveals their hand, you choose a nonland card from it, then that player discards that card. (Do both if was spent.)
was spent to cast this spell, return up to one target creature to its owner's hand. If was spent to cast this spell, target player reveals their hand, you choose a nonland card from it, then that player discards that card. (Do both if was spent.)Click a line or tag to filter
Cards similar to River's Grasp 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.
Deceit82%
$3.37↑#14596↑0.00↓0.6 years↓
"When this creature enters, if was spent to cast it, target opponent reveals their hand. You choose a nonland card from it. That player discards that card."
was spent to cast it, target opponent reveals their hand. You choose a nonland card from it. That player discards that card."
Shrieking Grotesque80%
$0.06↓#312270.00↓20.6 years↑
"When this creature enters, if was spent to cast it, target player discards a card."
was spent to cast it, target player discards a card."
Drill Bit78%
$0.21↓#23234↑0.507.6 years↓
"Target player reveals their hand. You choose a nonland card from it. That player discards that card."
Humiliate77%
$0.14↓#17676↑0.445.4 years↓
"Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Put a +1/+1 counter on a creature you control."
Nightsnare76%
$0.08↓#269470.3111.1 years↓
"Target opponent reveals their hand. You may choose a nonland card from it. If you do, that player discards that card. If you don't, that player discards two cards."
Render Speechless76%
$0.04↓#21156↑0.00↓0.4 years↓
"Target opponent reveals their hand. You choose a nonland card from it. That player discards that card."
Thought Erasure76%
$0.23↑#17512↑0.18↓7.9 years↓
"Target opponent reveals their hand. You choose a nonland card from it. That player discards that card."
Dark Inquiry76%
$0.12↓#250430.79↑8.6 years↓
"Target opponent reveals their hand. You choose a nonland card from it. That player discards that card."
Pilfer76%
$0.16↓#8774↑0.11↓4.0 years↓
"Target opponent reveals their hand. You choose a nonland card from it. That player discards that card."
Duress76%
$0.06↓#3252↑0.3627.9 years↑
"Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card."
Distress76%
$0.08↓#18513↑1.00↑21.9 years↑
"Target player reveals their hand. You choose a nonland card from it. That player discards that card."
The Torment of Gollum76%
$0.22#13436↑0.25↓3.2 years↓
"Target opponent reveals their hand. You choose a nonland card from it. That player discards that card."
Toll of the Invasion76%
$0.10↓#20153↑0.12↓7.3 years↓
"Target opponent reveals their hand. You choose a nonland card from it. That player discards that card."
Elspeth's Nightmare76%
$0.11↓#11909↑0.356.6 years↓
"Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card."
Dread Fugue76%
$0.19↓#20885↑0.364.8 years↓
"Target player reveals their hand. You choose a nonland card from it [with mana value 2 or less]. That player discards that card."
Devour Intellect74%
$0.17↓#20806↑0.00↓5.1 years↓
"Target opponent discards a card. If mana from a Treasure was spent to cast this spell, instead that player reveals their hand, you choose a nonland card from it, then that player discards that card."
Lay Bare the Heart74%
$0.22#248530.479.4 years↓
"Target opponent reveals their hand. You choose a nonlegendary, nonland card from it. That player discards that card."
Extortion74%
$0.35↑#300860.4326.9 years↑
"Look at target player's hand and choose up to two cards from it. That player discards those cards."
Blackmail74%
$0.53↑#19675↑0.3223.9 years↑
"Target player reveals three cards from their hand and you choose one of them. That player discards that card."
Inquisition of Kozilek74%
$0.45↑#9109↑0.73↑16.4 years↓
"Target player reveals their hand. You choose a nonland card from it with mana value 3 or less. That player discards that card."