Breaching Hippocamp 

Creature — Horse Fish
$0.10 #14831 0.41 12.9 years
Flash (You may cast this spell any time you could cast an instant.)
When this creature enters, untap another target creature you control.
Click a line or tag to filter
Cards similar to Breaching Hippocamp 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.
Hyrax Tower Scout98%
$0.25↑#9369↑0.14↓6.6 years↓
"When this creature enters, untap target creature."
Village Bell-Ringer88%
$0.20↑#3631↑0.4014.9 years↑
"When this creature enters, untap all creatures you control."
+1 more matching line
Zephyr Winder86%
$0.19↑#24923↓0.25↓3.4 years↓
"Whenever this creature deals combat damage to a player, untap up to one target creature."
Corridor Monitor85%
$0.12↑#8979↑0.436.9 years↓
"When this creature enters, untap target artifact or creature you control."
Veteran's Reflexes84%
$0.20↑#22447↓0.29↓16.6 years↑
"Target creature gets +1/+1 until end of turn. Untap that creature."
Tenth District Veteran83%
$0.08↓#25288↓0.25↓7.6 years↓
"Whenever this creature attacks, untap another target creature you control."
Super Suit82%
$0.17↑#19150↓0.00↓0.2 years↓
"When this Equipment enters, attach it to target creature you control. Untap that creature."
+1 more matching line
Guac & Marshmallow Pizza82%
$0.21↑#152140.00↓0.5 years↓
"When this artifact enters, target creature gets +2/+2 until end of turn. Untap it."
+1 more matching line
Dauntless Aven82%
$0.22↑#20764↓0.00↓9.1 years↓
"Whenever this creature attacks, untap target creature you control."
Refuse to Yield82%
$0.11↑#120340.56↑4.4 years↓
"Target creature gets +2/+7 until end of turn. Untap it."
Stony Strength82%
$0.10#133970.00↓7.6 years↓
"Put a +1/+1 counter on target creature you control. Untap that creature."
Triceraton Regenta82%
$0.21↑#30289↓0.00↓0.5 years↓
"Whenever this creature attacks, untap up to one other target creature."
Bounding Krasis82%
$0.12↑#177550.29↓11.1 years↓
"When this creature enters, you may tap or untap target creature."
+1 more matching line
Great Oak Guardian82%
$0.15↑#6781↑0.5010.8 years↓
"When this creature enters, creatures target player controls get +2/+2 until end of turn. Untap them."