Envelop 
Instant
$3.92 #20851 0.06 24.4 years
Counter target sorcery spell.
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Extinguish100%
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"Counter target sorcery spell."
Mystic Denial93%
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"Counter target creature or sorcery spell."
Invasive Surgery86%
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"Counter target sorcery spell."
Dimir Charm84%
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"• Counter target sorcery spell."
Miscast84%
$1.41↓#2838↑0.41↑6.3 years↓
"Counter target instant or sorcery spell unless its controller pays 
."
."
Muddle the Mixture84%
$2.04↓#710↑0.49↑21.0 years↓
"Counter target instant or sorcery spell."
Psychic Rebuttal84%
$0.22↓#201050.19↑11.3 years↓
"Counter target instant or sorcery spell that targets you."
Warping Wail82%
$0.45↓#1995↑0.16↑10.7 years↓
"• Counter target sorcery spell."
Obscura Charm82%
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"• Counter target instant or sorcery spell."
Flusterstorm82%
$4.88↑#308↑0.78↑15.3 years↓
"Counter target instant or sorcery spell unless its controller pays 
."
."
Disrupt80%
$0.23↓#10248↑0.1129.4 years↑
"Counter target instant or sorcery spell unless its controller pays ."
."
Molten Influence80%
$8.77↑#176680.21↑25.1 years
"Counter target instant or sorcery spell unless its controller has this card deal 4 damage to them."
Sister of Silence80%
$0.41↓#12962↑0.004.0 years↓
"When this creature enters, counter target instant spell, sorcery spell, activated ability, or triggered ability."
Stratus Dancer78%
$0.27↓#8485↑0.1111.6 years↓
"When this creature is turned face up, counter target instant or sorcery spell."
Spider-Sense78%
$1.02↓#2842↑0.33↑1.1 years↓
"Counter target instant spell, sorcery spell, or triggered ability."
Unyaro Griffin76%
$0.21↓#246800.0530.0 years↑
"Sacrifice this creature: Counter target red instant or sorcery spell."
Cursecatcher76%
$0.43↓#11827↑0.22↑18.5 years↓
"Sacrifice this creature: Counter target instant or sorcery spell unless its controller pays ."
."
Judge's Familiar76%
$0.22↓#5553↑0.1314.0 years↓
"Sacrifice this creature: Counter target instant or sorcery spell unless its controller pays ."
."
Odds // Ends75%
$0.40↓#26440↓0.31↑20.5 years↓
"Flip a coin. If it comes up heads, counter target instant or sorcery spell. If it comes up tails, copy that spell and you may choose new targets for the copy."
Cancel74%
$0.07↓#2087↑0.31↑20.0 years↓
"Counter target spell."