Intervene 
Instant
$0.31 #16028 0.00 27.7 years
Counter target spell that targets a creature.
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Remove Soul94%
$0.11↓#147930.21↑32.4 years↑
"Counter target creature spell."
Dismiss94%
$0.14↓#11831↑0.31↑29.0 years↑
"Counter target spell."
Counterspell93%
$2.14↑#16↑0.96↑33.2 years↑
"Counter target spell."
Withering Boon90%
$11.36↑#5125↑0.68↑30.0 years↑
"Counter target creature spell."
Spell Blast88%
$0.04↓#20112↓0.28↑33.2 years↑
"Counter target spell with mana value X."
Abjure88%
$1.70↑#6215↑0.45↑29.4 years↑
"Counter target spell."
Forbid86%
$0.64↑#8190↑0.60↑28.3 years
"Counter target spell."
Cancel85%
$0.07↓#2087↑0.31↑20.0 years↓
"Counter target spell."
Outwit84%
$0.06↓#24183↓0.18↑14.5 years↓
"Counter target spell that targets a player."
Confound84%
$0.19↓#11911↑0.12↑25.7 years↓
"Counter target spell that targets a creature."
Flash Counter83%
$0.29↓#183420.29↑32.4 years↑
"Counter target instant spell."
Force of Will82%
$55.04↑#204↑2.15↑30.4 years↑
"Counter target spell."
Meddle82%
$0.19↓#21566↓0.50↑30.0 years↑
"If target spell has only one target and that target is a creature, change that spell's target to another creature."
Deflection81%
$0.32↑#22446↓0.0631.4 years↑
"Change the target of target spell with a single target."
Double Negative80%
$0.24↓#21185↓0.26↑17.5 years↓
"Counter up to two target spells."
Force Spike80%
$0.97↑#133390.33↑32.4 years↑
"Counter target spell unless its controller pays 
."
."
Rebound80%
$0.20↓#27879↓0.27↑28.6 years
"Change the target of target spell that targets only a player. The new target must be a player."
Contradict79%
$0.05↓#19663↓0.19↑11.6 years↓
"Counter target spell."
Out of Air79%
$0.23↓#141700.18↑2.9 years↓
"Counter target spell."
Ertai's Scorn79%
$0.23↓#9527↑0.32↑4.1 years↓
"Counter target spell."