Breath of the Sleepless 
Enchantment
$0.29 #14980 0.05 4.9 years
You may cast Spirit spells as though they had flash.
Whenever you cast a creature spell during an opponent's turn, tap up to one target creature.
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Rattlechains90%
$0.31↑#10648↑0.1310.5 years↑
"You may cast Spirit spells as though they had flash."
Supernatural Rescue80%
$0.10↓#25070↓0.31↑4.9 years
"When you cast this spell, tap up to two target creatures you don't control."
+1 more matching line
Elite Skirmisher79%
$0.12↓#27347↓0.0512.7 years↑
"Whenever you cast a spell that targets this creature, you may tap target creature."
Onslaught78%
$0.14↓#21846↓0.39↑28.3 years↑
"Whenever you cast a creature spell, tap target creature."
Wavecrash Triton76%
$0.12↓#26629↓0.1313.1 years↑
"Whenever you cast a spell that targets this creature, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
High Fae Trickster76%
$4.42↑#838↑0.58↑1.9 years↓
"You may cast spells as though they had flash."
Innocence Kami76%
$0.18↓#29780↓0.0722.1 years↑
"
, 
: Tap target creature."
, : Tap target creature."+1 more matching line
Dream Spoilers76%
$0.14↓#19623↓0.25↑3.1 years↓
"Whenever you cast a spell during an opponent's turn, up to one target creature an opponent controls gets -1/-1 until end of turn."
Quiet Contemplation74%
$0.20↓#19052↓0.55↑12.1 years↑
"Whenever you cast a noncreature spell, you may pay 
. If you do, tap target creature an opponent controls and it doesn't untap during its controller's next untap step."
. If you do, tap target creature an opponent controls and it doesn't untap during its controller's next untap step."
D'Avenant Trapper74%
$0.03↓#23724↓0.29↑8.5 years↑
"Whenever you cast a historic spell, tap target creature an opponent controls."
Dreamspoiler Witches74%
$0.24↓#23540↓0.1119.0 years↑
"Whenever you cast a spell during an opponent's turn, you may have target creature get -1/-1 until end of turn."
Nightmare Sower73%
$0.29#131070.150.7 years↓
"Whenever you cast a spell during an opponent's turn, put a -1/-1 counter on up to one target creature."
Glen Elendra Pranksters72%
$0.26↓#18270↓0.29↑19.0 years↑
"Whenever you cast a spell during an opponent's turn, you may return target creature you control to its owner's hand."
Harrier Griffin72%
$0.13↓#25786↓0.18↑20.7 years↑
"At the beginning of your upkeep, tap target creature."
Leyline of Anticipation72%
$4.58↑#758↑0.70↑16.3 years↑
"You may cast spells as though they had flash."
Borne Upon a Wind72%
$3.07↑#645↑0.52↑3.3 years↓
"You may cast spells this turn as though they had flash."
Sentinel of the Eternal Watch72%
$0.11↓#173720.44↑11.3 years↑
"At the beginning of combat on each opponent's turn, tap target creature that player controls."
Captain Mar-Vell, Space-Born72%
$0.14↓#157270.39↑0.3 years↓
"As long as an opponent has cast a spell this turn, you may cast spells as though they had flash."
Brineborn Cutthroat72%
$0.17↓#10386↑0.127.3 years↑
"Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on this creature."
Kami of the Hunt71%
$0.05↓#28351↓0.37↑22.1 years↑
"Whenever you cast a Spirit or Arcane spell, this creature gets +1/+1 until end of turn."