Rishadan Dockhand 
Creature — Merfolk
$0.22 #17696 0.12 5.5 years
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
, 
: Tap target land.Click a line or tag to filter
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Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Rishadan Port98%
$7.27↑#146960.41↑27.0 years↑
", : Tap target land."
, : Tap target land."
Floodwater Dam93%
$0.69↑#30763↓0.43↑30.4 years↑
"
, : Tap X target lands."
, : Tap X target lands."
Mishra's Helix90%
$0.40↑#25388↓0.1128.0 years↑
", : Tap X target lands."
, : Tap X target lands."
Mana Leech88%
$0.26↑#30404↓0.25↑28.0 years↑
": Tap target land. It doesn't untap during its controller's untap step for as long as this creature remains tapped."
: Tap target land. It doesn't untap during its controller's untap step for as long as this creature remains tapped."
Mole Worms88%
$0.18↓#30398↓0.89↑31.4 years↑
": Tap target land. It doesn't untap during its controller's untap step for as long as this creature remains tapped."
: Tap target land. It doesn't untap during its controller's untap step for as long as this creature remains tapped."
Floodbringer87%
$0.15↓#190130.22↑21.7 years↑
"
, Return a land you control to its owner's hand: Tap target land."
, Return a land you control to its owner's hand: Tap target land."
Early Frost86%
$0.13↓#25566↓0.59↑22.4 years↑
"Tap up to three target lands."
Gulf Squid85%
$0.14↓#27581↓0.50↑26.4 years↑
"When this creature enters, tap all lands target player controls."
Icy Manipulator82%
$0.14↓#10853↑0.31↑33.2 years↑
", : Tap target artifact, creature, or land."
, : Tap target artifact, creature, or land."
Wintermoon Mesa82%
$0.44↑#27524↓0.2026.4 years↑
", , Sacrifice this land: Tap two target lands."
, , Sacrifice this land: Tap two target lands."
Ring of Gix81%
$0.99↑#28261↓0.0627.7 years↑
", : Tap target artifact, creature, or land."
, : Tap target artifact, creature, or land."
Mana Web76%
$18.07↑#11750↑1.64↑29.4 years↑
"Whenever a land an opponent controls is tapped for mana, tap all lands that player controls that could produce any type of mana that land could produce."
Vedalken Certarch76%
$0.09↓#27515↓0.2016.1 years↑
": Tap target artifact, creature, or land. Activate only if you control three or more artifacts."
: Tap target artifact, creature, or land. Activate only if you control three or more artifacts."
Scepter of Dominance75%
$0.59↑#161710.33↑17.7 years↑
"
, : Tap target permanent."
, : Tap target permanent."
Stensia Innkeeper74%
$0.13↓#29391↓0.29↑10.2 years↑
"When this creature enters, tap target land an opponent controls. That land doesn't untap during its controller's next untap step."
Mana Skimmer74%
$0.13↓#28120↓0.68↑20.0 years↑
"Whenever this creature deals damage to a player, tap target land that player controls. That land doesn't untap during its controller's next untap step."
Tectonic Instability72%
$3.76↑#143991.50↑26.0 years↑
"Whenever a land enters, tap all lands its controller controls."
Quake, Agent of S.H.I.E.L.D.72%
$0.23↑#188060.65↑0.3 years↓
"Whenever you cast a noncreature spell, tap target creature or land."
Amber Prison71%
$0.31↑#23473↓0.25↑30.0 years↑
"
, : Tap target artifact, creature, or land. That permanent doesn't untap during its controller's untap step for as long as this artifact remains tapped."
, : Tap target artifact, creature, or land. That permanent doesn't untap during its controller's untap step for as long as this artifact remains tapped."
Kelpie Guide70%
$0.24↑#4723↑0.065.5 years
": Tap target permanent. Activate only if you control eight or more lands."
: Tap target permanent. Activate only if you control eight or more lands."