Aether Herder 
Creature — Elf Artificer Druid
$0.05 #25537 0.00 9.7 years
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 Herder 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↑#249660.069.7 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↑#19702↑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↑#234370.14↑9.7 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 Swooper100%
$0.21↑#19124↑0.059.7 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↑#269020.0010.1 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↓#276790.25↑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↓#263970.29↑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↑#246270.0010.1 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
Riparian Tiger87%
$0.09↑#277380.17↑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
Phyrexian Ironworks87%
$0.21↑#13110↑0.002.3 years↓
"Whenever you attack, you get ."
."
Shipwreck Moray87%
$0.05#256590.009.7 years
"When this creature enters, you get ."
."
Aetherstream Leopard86%
$0.05#272220.11↑9.7 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↑#19629↑0.0010.1 years
"When this creature enters, you get ."
."
Aether Theorist86%
$0.09↑#17313↑0.0010.1 years
"When this creature enters, you get ."
."
Spontaneous Artist86%
$0.11↑#264550.0610.1 years
"When this creature enters, you get ."
."
Scrapper Champion86%
$0.25↑#237580.069.7 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
Primal Prayers86%
$0.21↑#13272↑0.002.3 years↓
"When this enchantment enters, you get ."
."
Consulate Surveillance86%
$0.28↑#13546↑0.15↑10.1 years
"When this enchantment enters, you get ."
."
Thriving Skyclaw85%
$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