Aether Swooper 
Creature — Vedalken Artificer
$0.21 #19124 0.05 9.7 years
Flying
When this creature enters, you get 
(two energy counters).
(two energy counters).Whenever this creature attacks, you may pay . If you do, create a 1/1 colorless Servo artifact creature token.
. If you do, create a 1/1 colorless Servo artifact creature token.Click a line or tag to filter
Cards similar to Aether Swooper 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.
Aether Inspector100%
$0.06↓#24966↓0.069.7 years
"Whenever this creature attacks, you may pay . If you do, create a 1/1 colorless Servo artifact creature token."
. If you do, create a 1/1 colorless Servo artifact creature token."+1 more matching line
Aether Chaser100%
$0.21#197020.009.7 years
"Whenever this creature attacks, you may pay . If you do, create a 1/1 colorless Servo artifact creature token."
. If you do, create a 1/1 colorless Servo artifact creature token."+1 more matching line
Aether Herder100%
$0.05↓#25537↓0.009.7 years
"Whenever this creature attacks, you may pay . If you do, create a 1/1 colorless Servo artifact creature token."
. If you do, create a 1/1 colorless Servo artifact creature token."+1 more matching line
Aether Poisoner100%
$0.16↓#23437↓0.149.7 years
"Whenever this creature attacks, you may pay . If you do, create a 1/1 colorless Servo artifact creature token."
. If you do, create a 1/1 colorless Servo artifact creature token."+1 more matching line
Thriving Rhino88%
$0.07↓#26902↓0.0010.1 years
"Whenever this creature attacks, you may pay . If you do, put a +1/+1 counter on it."
. If you do, put a +1/+1 counter on it."+1 more matching line
Thriving Ibex88%
$0.04↓#27679↓0.25↑10.1 years
"Whenever this creature attacks, you may pay . If you do, put a +1/+1 counter on it."
. If you do, put a +1/+1 counter on it."+1 more matching line
Thriving Grubs88%
$0.04↓#26397↓0.29↑10.1 years
"Whenever this creature attacks, you may pay . If you do, put a +1/+1 counter on it."
. If you do, put a +1/+1 counter on it."+1 more matching line
Thriving Rats88%
$0.10↓#24627↓0.0010.1 years
"Whenever this creature attacks, you may pay . If you do, put a +1/+1 counter on it."
. If you do, put a +1/+1 counter on it."+1 more matching line
Thriving Turtle88%
$0.06↓#207830.0510.1 years
"Whenever this creature attacks, you may pay . If you do, put a +1/+1 counter on it."
. If you do, put a +1/+1 counter on it."+1 more matching line
Phyrexian Ironworks87%
$0.21#13110↑0.002.3 years↓
"Whenever you attack, you get ."
."
Riparian Tiger86%
$0.09↓#27738↓0.17↑10.1 years
"Whenever this creature attacks, you may pay . If you do, it gets +2/+2 until end of turn."
. If you do, it gets +2/+2 until end of turn."+1 more matching line
Shipwreck Moray86%
$0.05↓#25659↓0.009.7 years
"When this creature enters, you get ."
."
Thriving Skyclaw86%
$0.16↓#214330.25↑2.3 years↓
"Whenever this creature attacks, you may pay . If you do, put a +1/+1 counter on it."
. If you do, put a +1/+1 counter on it."+1 more matching line
Aetherstream Leopard86%
$0.05↓#27222↓0.119.7 years
"Whenever this creature attacks, you may pay . If you do, it gets +2/+0 until end of turn."
. If you do, it gets +2/+0 until end of turn."+1 more matching line
Minister of Inquiries86%
$0.24↑#196290.0010.1 years
"When this creature enters, you get ."
."
Aether Theorist86%
$0.09↓#173130.0010.1 years
"When this creature enters, you get ."
."
Primal Prayers86%
$0.21#13272↑0.002.3 years↓
"When this enchantment enters, you get ."
."
Spontaneous Artist86%
$0.11↓#26455↓0.0610.1 years
"When this creature enters, you get ."
."
Scrapper Champion85%
$0.25↑#23758↓0.069.7 years
"Whenever this creature attacks, you may pay . If you do, put a +1/+1 counter on it."
. If you do, put a +1/+1 counter on it."+1 more matching line
Bristling Hydra85%
$0.16↓#183870.0810.1 years
"When this creature enters, you get ."
."