Withering Boon 
Instant
$11.36 #5125 0.68 30.0 years
As an additional cost to cast this spell, pay 3 life.
Counter target creature spell.
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"Counter target creature spell."
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"Counter target spell that targets a creature."
Exclude87%
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"Counter target creature spell."
Bone to Ash87%
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"Counter target creature spell."
Dismiss85%
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"Counter target spell."
Summoner's Bane85%
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"Counter target creature spell. Create a 2/2 blue Illusion creature token."
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"Counter target spell."
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"Counter target creature spell. Its controller loses 1 life."
Forbid82%
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"Counter target spell."
Abjure81%
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"Counter target spell."
Spell Blast81%
$0.04↓#20112↓0.28↓33.2 years↑
"Counter target spell with mana value X."
Bond of Agony79%
$1.60↓#15255↓0.30↓20.5 years↓
"As an additional cost to cast this spell, pay X life."
Fire Covenant79%
$0.34↓#2723↑0.18↓31.4 years↑
"As an additional cost to cast this spell, pay X life."
Essence Capture79%
$0.18↓#58700.00↓7.7 years↓
"Counter target creature spell. Put a +1/+1 counter on up to one target creature you control."
Geist Snatch78%
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"Counter target creature spell. Create a 1/1 blue Spirit creature token with flying."
Trap Essence78%
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"Counter target creature spell. Put two +1/+1 counters on up to one target creature."
Toxic Deluge78%
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"As an additional cost to cast this spell, pay X life."