Nebelgast Herald {2}{U}
Creature — Spirit
Flash
Flying
Whenever this creature or another Spirit you control enters, tap target creature an opponent controls.
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Cards that do something similar expected a card that isn't here?
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.
Kapsho Kitefins 92%
$0.23#19936
"Whenever this creature or another creature you control enters, tap target creature an opponent controls."
Lossarnach Captain 91%
$0.41#3839
"Whenever this creature or another Human you control enters, tap target creature an opponent controls."
Kor Entanglers 90%
$0.11#17984
"Whenever this creature or another Ally you control enters, tap target creature an opponent controls."
Fractal Mascot 83%
$0.17#23132
"When this creature enters, tap target creature an opponent controls. Put a stun counter on it."
Protocol Knight 82%
$0.13#23972
"When this creature enters, tap target creature an opponent controls. Put a stun counter on that creature if you control another Knight."
Oceanus Dragon 82%
$0.20#18040
"When this creature enters, tap target creature an opponent controls. Goad it."
Chrome Prowler 82%
$0.13#19375
"When this creature enters, tap target creature an opponent controls."
+1 more matching line
Heavy Infantry 82%
$0.10#29862
"When this creature enters, tap target creature an opponent controls."
Chillbringer 81%
$0.04#25620
"When this creature enters, tap target creature an opponent controls. It doesn't untap during its controller's next untap step."
Merfolk Trickster 81%
$0.44#9679
"When this creature enters, tap target creature an opponent controls. It loses all abilities until end of turn."
+1 more matching line
Dungeon Geists 81%
$0.13#17608
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control this creature."
Icefall Regent 81%
$0.56#12711
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control this creature."
Frost Trickster 81%
$0.21#17205
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
+1 more matching line
Abominable Treefolk 81%
$0.25#12172
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
Stitched Mangler 81%
$0.07#20692
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
Watertrap Weaver 81%
$0.06#21853
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
Kor Hookmaster 81%
$0.24#25359
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."
Spire Patrol 81%
$0.12#27907
"When this creature enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step."