Disrupting Shoal 
Instant — Arcane
$15.34 #9978 0.57 21.6 years
You may exile a blue card with mana value X from your hand rather than pay this spell's mana cost.
Counter target spell if its mana value is X.
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Cards similar to Disrupting Shoal expected a card that isn't here?
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Mental Misstep89%
$5.90↓#462↑0.79↑15.3 years↓
"Counter target spell with mana value 1."
Force of Negation89%
$47.58↑#265↑1.91↑7.2 years↓
"If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost."
Force of Will88%
$58.18↑#192↑2.01↑30.2 years↑
"You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost."
+1 more matching line
Flare of Denial88%
$3.54↓#1426↑1.01↑2.2 years↓
"Counter target spell."
+1 more matching line
Misdirection84%
$12.06↓#1537↑0.70↑26.9 years↑
"You may exile a blue card from your hand rather than pay this spell's mana cost."
Foil84%
$1.67↓#4267↑0.86↑26.3 years↑
"Counter target spell."
Subtlety83%
$10.98↓#4274↑0.595.3 years↓
"Evoke—Exile a blue card from your hand."
Spell Snare82%
$0.42↓#84420.39↓20.3 years↓
"Counter target spell with mana value 2."
Thwart80%
$0.80↓#15428↓0.5026.9 years↑
"Counter target spell."
Snapback79%
$0.38↓#4381↑0.5019.9 years↓
"You may exile a blue card from your hand rather than pay this spell's mana cost."
Commandeer79%
$3.37↓#1991↑1.00↑20.1 years↓
"You may exile two blue cards from your hand rather than pay this spell's mana cost."
Pact of Negation78%
$17.65↑#364↑1.46↑19.3 years↓
"Counter target spell."
Minor Misstep77%
$0.17↓#14720↓1.00↑3.6 years↓
"Counter target spell with mana value 1 or less."
Thoughtbind77%
$0.05↓#29397↓0.33↓21.9 years
"Counter target spell with mana value 4 or less."
Reject Imperfection73%
$0.29↓#4722↑0.13↓3.6 years↓
"Counter target spell. If that spell's mana value was 3 or less, proliferate."
Blazing Shoal73%
$3.50↓#14369↓0.33↓21.6 years
"You may exile a red card with mana value X from your hand rather than pay this spell's mana cost."
Fierce Guardianship72%
$59.12↑#82↑2.30↑6.4 years↓
"Counter target noncreature spell."
Sickening Shoal72%
$10.05↓#19381↓0.4721.6 years
"You may exile a black card with mana value X from your hand rather than pay this spell's mana cost."
Nourishing Shoal71%
$0.65↓#22790↓0.00↓21.6 years
"You may exile a green card with mana value X from your hand rather than pay this spell's mana cost."
Not of This World71%
$5.78↓#2467↑0.5016.4 years↓
"Counter target spell or ability that targets a permanent you control."