Aether Swooper 
Creature — Vedalken Artificer
$0.26 #18843 0.05 9.6 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%
$0.07↓#24777↓0.25↑9.6 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%
$0.24↓#194170.009.6 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%
$0.19↓#23198↓0.069.6 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↓#25299↓0.67↑9.6 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 Rats88%
$0.08↓#24249↓0.29↑9.9 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%
$0.05↓#27283↓0.27↑9.9 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%
$0.11↓#203850.20↑9.9 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%
$0.05↓#26004↓0.22↑9.9 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 Rhino88%
$0.09↓#26540↓0.31↑9.9 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
Spontaneous Artist88%
$0.13↓#26132↓0.069.9 years
"When this creature enters, you get ."
."
Phyrexian Ironworks87%
$0.24↓#12856↑0.23↑2.2 years↓
"Whenever you attack, you get ."
."
Riparian Tiger86%
$0.08↓#27400↓0.009.9 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
Aether Theorist86%
$0.13↓#170530.19↑9.9 years
"When this creature enters, you get ."
."
Shipwreck Moray86%
$0.08↓#25321↓0.079.6 years
"When this creature enters, you get ."
."
Aetherstream Leopard86%
$0.05↓#26939↓0.129.6 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
Thriving Skyclaw86%
$0.12↓#210000.002.2 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
Riddle Gate Gargoyle86%
$0.20↓#11367↑0.002.2 years↓
"When this creature enters, you get ."
."
Primal Prayers86%
$0.18↓#13160↑0.45↑2.2 years↓
"When this enchantment enters, you get ."
."
Scrapper Champion85%
$0.23↓#23307↓0.16↑9.6 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
Consulate Surveillance85%
$0.24↓#13263↑0.29↑9.9 years
"When this enchantment enters, you get ."
."