Harbinger of the Tides 

Creature — Merfolk Wizard
$0.24 #11621 0.10 11.3 years
You may cast this spell as though it had flash if you pay
more to cast it. (You may cast it any time you could cast an instant.)
When this creature enters, you may return target tapped creature an opponent controls to its owner's hand.
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Surrakar Banisher96%
$0.05↓#30772↓0.0616.7 years↑
"When this creature enters, you may return target tapped creature to its owner's hand."
Spellweaver Duo95%
$0.06↓#31034↓0.058.4 years↓
"When this creature enters, you may return target tapped creature to its owner's hand."
Peerless Ropemaster95%
$0.06↓#26643↓0.00↓2.5 years↓
"When this creature enters, return up to one target tapped creature to its owner's hand."
Mystical Tether90%
$0.07↓#20281↓0.29↑2.5 years↓
"You may cast this spell as though it had flash if you pay
more to cast it."
Asinine Antics88%
$0.59↑#8182↑0.56↑3.1 years↓
"You may cast this spell as though it had flash if you pay
more to cast it."
Ghitu Fire86%
$0.27↑#22922↓0.0726.0 years↑
"You may cast this spell as though it had flash if you pay
more to cast it."
Selkie Hedge-Mage85%
$0.29↑#27974↓0.0618.2 years↑
"When this creature enters, if you control two or more Islands, you may return target tapped creature to its owner's hand."
Saproling Symbiosis85%
$0.46↑#5356↑0.00↓26.0 years↑
"You may cast this spell as though it had flash if you pay
more to cast it."
Oakshade Stalker // Moonlit Ambusher85%
$0.22↓#23223↓0.064.9 years↓
"You may cast this spell as though it had flash if you pay
more to cast it."
Cunning Geysermage85%
$0.04↓#26995↓0.076.1 years↓
"When this creature enters, if it was kicked, return up to one other target creature to its owner's hand."
Bigfin Bouncer84%
$0.21↓#14247↓0.191.9 years↓
"When this creature enters, return target creature an opponent controls to its owner's hand."
Exclusion Mage84%
$0.08↓#15551↓0.31↑8.3 years↓
"When this creature enters, return target creature an opponent controls to its owner's hand."
Iceridge Serpent84%
$0.09↓#19784↓0.29↑1.5 years↓
"When this creature enters, return target creature an opponent controls to its owner's hand."
Riddlemaster Sphinx83%
$0.29↑#19899↓0.148.3 years↓
"When this creature enters, you may return target creature an opponent controls to its owner's hand."
Voidwielder83%
$0.07↓#29124↓0.1114.0 years↑
"When this creature enters, you may return target creature to its owner's hand."
Separatist Voidmage83%
$0.15↓#25979↓0.25↑11.3 years
"When this creature enters, you may return target creature to its owner's hand."
Angler Drake82%
$0.04↓#24782↓0.099.5 years↓
"When this creature enters, you may return target creature to its owner's hand."
Man-o'-War82%
$0.10↓#8153↑0.1429.7 years↑
"When this creature enters, return target creature to its owner's hand."
Aether Adept82%
$0.08↓#128680.1216.3 years↑
"When this creature enters, return target creature to its owner's hand."