Rhystic Study 
Enchantment
$66.79 #44 2.73 26.3 years
Whenever an opponent casts a spell, you may draw a card unless that player pays 
.
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Mystic Remora90%
$9.56↓#99↓1.54↓31.3 years↑
"Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays 
."
."
Unifying Theory90%
$0.43↓#25217↓0.12↓24.9 years↓
"Whenever a player casts a spell, that player may pay . If the player does, they draw a card."
. If the player does, they draw a card."
Esper Sentinel87%
$56.06↓#78↓1.67↓5.3 years↓
"Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays 
, where X is this creature's power."
, where X is this creature's power."
Soul Barrier85%
$0.29↓#17733↓0.55↓31.3 years↑
"Whenever an opponent casts a creature spell, this enchantment deals 2 damage to that player unless they pay ."
."
Reparations84%
$4.80↓#22560↓0.43↓29.9 years↑
"Whenever an opponent casts a spell that targets you or a creature you control, you may draw a card."
Isolation Cell83%
$0.31↓#12534↓0.55↓15.3 years↓
"Whenever an opponent casts a creature spell, that player loses 2 life unless they pay ."
."
Hermit of the Natterknolls // Lone Wolf of the Natterknolls75%
$0.34↓#12155↓0.21↓10.4 years↓
"Whenever an opponent casts a spell during your turn, draw a card."
Chancellor of the Annex74%
$2.86↓#10169↓0.80↓15.3 years↓
"Whenever an opponent casts a spell, counter it unless that player pays ."
."
Mangara, the Diplomat74%
$0.37↓#612↓0.45↓6.2 years↓
"Whenever an opponent casts their second spell each turn, draw a card."
Silverquill Silencer74%
$0.20↓#24225↓0.33↓5.4 years↓
"Whenever an opponent casts a spell with the chosen name, they lose 3 life and you draw a card."
Kraum, Ludevic's Opus74%
$3.09↓#6911↓0.67↓9.8 years↓
"Whenever an opponent casts their second spell each turn, draw a card."
Insight73%
$1.81↓#10890↓0.32↓28.9 years↑
"Whenever an opponent casts a green spell, you draw a card."
Forced Fruition72%
$3.09↓#2511↓0.97↓18.9 years↓
"Whenever an opponent casts a spell, that player draws seven cards."
Spelltithe Enforcer72%
$7.15↓#8604↓1.16↓20.6 years↓
"Whenever an opponent casts a spell, that player sacrifices a permanent of their choice unless they pay ."
."
Ghostly Pilferer71%
$1.81↓#1414↓0.32↓6.2 years↓
"Whenever an opponent casts a spell from anywhere other than their hand, draw a card."
Horn of Plenty71%
$0.67↓#25128↓0.31↓26.9 years
"Whenever a player casts a spell, they may pay . If the player does, they draw a card at the beginning of the next end step."
. If the player does, they draw a card at the beginning of the next end step."
Aerial Extortionist70%
$4.61↓#2743↓0.39↓4.4 years↓
"Whenever another player casts a spell from anywhere other than their hand, draw a card."
Freyalise's Charm70%
$0.19↓#29607↓0.00↓31.3 years↑
"Whenever an opponent casts a black spell, you may pay 
. If you do, you draw a card."
. If you do, you draw a card."
Nether Void70%
$519.01↑#16171↓2.23↓32.3 years↑
"Whenever a player casts a spell, counter it unless that player pays 
."
."