Reasonable Doubt 
Instant
$0.18 #16697 0.07 2.7 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%
$0.23↑#3673↑0.27↑0.9 years↓
"Counter target spell unless its controller pays ."
."
Mana Tithe96%
$0.80↑#2142↑0.62↑19.7 years↑
"Counter target spell unless its controller pays ."
."
Complicate92%
$0.23↑#136590.0024.0 years↑
"Counter target spell unless its controller pays 
."
."
Censor91%
$0.20↑#135000.109.5 years↑
"Counter target spell unless its controller pays ."
."
Spell Snip91%
$0.12↓#27387↓0.1418.0 years↑
"Counter target spell unless its controller pays ."
."
Hindering Touch90%
$0.10↓#22938↓0.20↑23.4 years↑
"Counter target spell unless its controller pays ."
."
Quench90%
$0.16↓#13312↑0.127.7 years↑
"Counter target spell unless its controller pays ."
."
Clash of Wills89%
$0.20↑#12412↑0.29↑11.3 years↑
"Counter target spell unless its controller pays 
."
."
Evasive Action89%
$0.26↑#181890.44↑25.4 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%
$0.38↑#2670↑0.23↑6.1 years↑
"Counter target spell unless its controller pays ."
."
Crush Dissent88%
$0.14↓#184000.17↑7.5 years↑
"Counter target spell unless its controller pays ."
."
Logic Knot88%
$0.26↑#12854↑0.37↑19.5 years↑
"Counter target spell unless its controller pays ."
."
Flip the Switch88%
$0.22↑#13031↑0.33↑5.1 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↑#10469↑0.133.7 years
"Counter target spell unless its controller pays ."
."
Miscalculation88%
$0.31↑#11396↑0.36↑27.7 years↑
"Counter target spell unless its controller pays ."
."
Lookout's Dispersal88%
$0.25↑#10816↑0.009.1 years↑
"Counter target spell unless its controller pays ."
."
Make Disappear87%
$0.26↑#152170.20↑4.5 years↑
"Counter target spell unless its controller pays ."
."
Metallic Rebuke87%
$0.25↑#10837↑0.44↑9.7 years↑
"Counter target spell unless its controller pays ."
."
Calculated Dismissal86%
$0.18#163940.1211.3 years↑
"Counter target spell unless its controller pays ."
."
Reduce // Rubble86%
$0.20↑#24350↓0.62↑9.5 years↑
"Counter target spell unless its controller pays ."
."