Aethertide Whale 
Creature — Whale
$0.11 #8784 0.07 9.7 years
Flying
When this creature enters, you get six 
(energy counters).
(energy counters).Pay : Return this creature to its owner's hand.
: Return this creature to its owner's hand.Click a line or tag to filter
Cards similar to Aethertide Whale 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.
Greenbelt Rampager94%
$0.32↑#17420↓0.43↑9.7 years
"When this creature enters, pay . If you can't, return this creature to its owner's hand and you get ."
. If you can't, return this creature to its owner's hand and you get ."
Electrozoa92%
$0.07↓#26668↓0.002.3 years↓
"When this creature enters, you get ."
."+1 more matching line
Aetherstream Leopard92%
$0.05↓#27222↓0.119.7 years
"When this creature enters, you get ."
."
Solstice Zealot92%
$0.10↓#23376↓0.052.3 years↓
"When this creature enters, you get ."
."
Riparian Tiger92%
$0.09↓#27738↓0.17↑10.1 years
"When this creature enters, you get ."
."
Scrapper Champion91%
$0.25↑#23758↓0.069.7 years
"When this creature enters, you get ."
."
Thriving Skyclaw91%
$0.16↑#21433↓0.25↑2.3 years↓
"When this creature enters, you get ."
."
Shipwreck Moray91%
$0.05↓#25659↓0.009.7 years
"When this creature enters, you get ."
."+1 more matching line
Spontaneous Artist90%
$0.11#26455↓0.0610.1 years
"When this creature enters, you get ."
."
Tempest Harvester90%
$0.16↑#16477↓0.062.3 years↓
"When this creature enters, you get ."
."
Maulfist Doorbuster90%
$0.07↓#26684↓0.1310.1 years
"When this creature enters, you get ."
."
Voltaic Brawler90%
$0.17↑#28297↓0.0710.1 years
"When this creature enters, you get ."
."
Minister of Inquiries90%
$0.24↑#19629↓0.0010.1 years
"When this creature enters, you get ."
."
Conduit Goblin90%
$0.10↓#20074↓0.122.3 years↓
"When this creature enters, you get ."
."
Whirler Virtuoso90%
$0.23↑#5985↑0.1210.1 years
"When this creature enters, you get ."
."
Aether Hub90%
$0.18↑#3454↑0.0310.1 years
"When this land enters, you get ."
."
Servant of the Conduit90%
$0.12↑#11856↓0.31↑10.1 years
"When this creature enters, you get ."
."
Aether Theorist90%
$0.09↓#17313↓0.0010.1 years
"When this creature enters, you get ."
."
Hightide Hermit90%
$0.04↓#23017↓0.19↑10.1 years
"When this creature enters, you get ."
."+1 more matching line
Consulate Surveillance89%
$0.28↑#13546↓0.1510.1 years
"When this enchantment enters, you get ."
."