Reasonable Doubt 
Instant
$0.14 #16384 0.29 2.6 years
Counter target spell unless its controller pays 
.
.Suspect up to one target creature. (A suspected creature has menace and can't block.)
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It'll Quench Ya!96%
$0.27↑#3783↑0.00↓0.8 years↓
"Counter target spell unless its controller pays ."
."
Mana Tithe96%
$0.78↑#2148↑0.47↑19.6 years↑
"Counter target spell unless its controller pays ."
."
Complicate92%
$0.26↑#134810.3323.9 years↑
"Counter target spell unless its controller pays 
."
."
Censor91%
$0.21↑#133520.56↑9.4 years↑
"Counter target spell unless its controller pays ."
."
Spell Snip91%
$0.12↓#27124↓0.45↑17.9 years↑
"Counter target spell unless its controller pays ."
."
Hindering Touch90%
$0.09↓#22698↓0.2923.3 years↑
"Counter target spell unless its controller pays ."
."
Quench90%
$0.20↑#13076↑0.18↓7.6 years↑
"Counter target spell unless its controller pays ."
."
Clash of Wills89%
$0.15↑#12548↑0.2211.1 years↑
"Counter target spell unless its controller pays 
."
."
Evasive Action89%
$0.23↑#179310.07↓25.3 years↑
"Counter target spell unless its controller pays for each basic land type among lands you control."
for each basic land type among lands you control."
Jwari Disruption // Jwari Ruins88%
$0.48↑#2682↑0.265.9 years↑
"Counter target spell unless its controller pays ."
."
Make Disappear88%
$0.16↑#149720.12↓4.4 years↑
"Counter target spell unless its controller pays ."
."
Crush Dissent88%
$0.11↓#182560.94↑7.3 years↑
"Counter target spell unless its controller pays ."
."
Logic Knot88%
$0.18↑#12706↑0.00↓19.3 years↑
"Counter target spell unless its controller pays ."
."
Flip the Switch88%
$0.19↑#12832↑0.05↓4.9 years↑
"Counter target spell unless its controller pays 
. Create a 2/2 black Zombie creature token with decayed."
. Create a 2/2 black Zombie creature token with decayed."
Bring the Ending88%
$0.25↑#10286↑0.53↑3.6 years
"Counter target spell unless its controller pays ."
."
Miscalculation88%
$0.29↑#11239↑0.3827.6 years↑
"Counter target spell unless its controller pays ."
."
Lookout's Dispersal88%
$0.24↑#10542↑0.40↑8.9 years↑
"Counter target spell unless its controller pays ."
."
Metallic Rebuke87%
$0.27↑#10930↑0.17↓9.6 years↑
"Counter target spell unless its controller pays ."
."
Reduce // Rubble86%
$0.16↑#23938↓0.319.4 years↑
"Counter target spell unless its controller pays ."
."
Calculated Dismissal86%
$0.20↑#162740.57↑11.1 years↑
"Counter target spell unless its controller pays ."
."