Judge of Currents 
Creature — Merfolk Wizard
$0.30 #18841 0.29 19.0 years
Whenever a Merfolk you control becomes tapped, you may gain 1 life.
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Tributary Vaulter91%
$0.11↓#23642↓0.02↓0.7 years↓
"Whenever this creature becomes tapped, another target Merfolk you control gets +2/+0 until end of turn."
Deeproot Pilgrimage88%
$1.82↑#4523↑0.262.9 years↓
"Whenever one or more nontoken Merfolk you control become tapped, create a 1/1 blue Merfolk creature token with hexproof."
Wanderbrine Preacher82%
$0.17↓#177990.12↓0.7 years↓
"Whenever this creature becomes tapped, you gain 2 life."
Vampire Envoy81%
$0.12↓#192230.00↓10.7 years↓
"Whenever this creature becomes tapped, you gain 1 life."
Wanderwine Hub80%
$0.82↑#13839↑0.08↓19.0 years
"As this land enters, you may reveal a Merfolk card from your hand. If you don't, this land enters tapped."
Deeproot Elite78%
$0.27↓#5970↑0.388.8 years↓
"Whenever another Merfolk you control enters, put a +1/+1 counter on target Merfolk you control."
Jade Bearer78%
$0.08↓#22827↓0.258.8 years↓
"When this creature enters, put a +1/+1 counter on another target Merfolk you control."
Emmara, Soul of the Accord76%
$0.32↑#6681↑0.12↓8.0 years↓
"Whenever this card becomes tapped, create a 1/1 white Soldier creature token with lifelink."
River Sneak76%
$0.24↓#13811↑0.00↓9.1 years↓
"Whenever another Merfolk you control enters, this creature gets +1/+1 until end of turn."
Shaper Apprentice76%
$0.13↓#23747↓0.07↓9.1 years↓
"This creature has flying as long as you control another Merfolk."
Kumena's Speaker74%
$0.21↓#223570.00↓9.1 years↓
"This creature gets +1/+1 as long as you control another Merfolk or an Island."
Deeproot Waters74%
$0.26↓#4413↑0.309.1 years↓
"Whenever you cast a Merfolk spell, create a 1/1 blue Merfolk creature token with hexproof."
Jade Guardian73%
$0.23↓#25787↓0.07↓9.1 years↓
"When this creature enters, put a +1/+1 counter on target Merfolk you control."
Merrow Commerce71%
$13.13↑#6683↑0.39↑19.0 years
"At the beginning of your end step, untap all Merfolk you control."
Wylie Duke, Atiin Hero70%
$0.29↓#7986↑0.06↓2.5 years↓
"Whenever this card becomes tapped, you gain 1 life and draw a card."
Radha, Coalition Warlord70%
$0.08↓#190740.06↓4.1 years↓
"Whenever this card becomes tapped, another target creature you control gets +X/+X until end of turn, where X is the number of basic land types among lands you control."
Chrome Companion70%
$0.25↓#9903↑0.211.2 years↓
"Whenever this creature becomes tapped, you gain 1 life."