Stern Lesson 
Instant
$0.12 #10623 0.53 3.8 years
Draw two cards, then discard a card. Create a tapped Powerstone token. (It's an artifact with "
: Add 
. This mana can't be spent to cast a nonartifact spell.")
: Add . This mana can't be spent to cast a nonartifact spell.")Click a line or tag to filter
Cards similar to Stern Lesson 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.
Argothian Opportunist86%
$0.06↓#25284↓0.28↓3.8 years
"When this creature enters, create a tapped Powerstone token."
Stone Retrieval Unit86%
$0.11↓#18646↓0.25↓3.8 years
"When this creature enters, create a tapped Powerstone token."
Koilos Roc85%
$0.05↓#25641↓0.07↓3.8 years
"When this creature enters, create a tapped Powerstone token."
Fallaji Excavation82%
$0.08↓#25667↓0.29↓3.8 years
"Create three tapped Powerstone tokens. You gain 3 life."
Great Desert Prospector82%
$0.15↑#18610↓0.11↓3.8 years
"When this creature enters, create a tapped Powerstone token for each other creature you control."
Gix's Caress81%
$0.08↓#21943↓0.71↑3.8 years
"Create a tapped Powerstone token."
Catalog78%
$0.07↓#16812↓0.00↓27.9 years↑
"Draw two cards, then discard a card."
The Brothers' War78%
$1.13↑#12846↓0.603.8 years
"Create two tapped Powerstone tokens."
Splitting the Powerstone78%
$0.10↓#21592↓0.27↓3.8 years
"Create two tapped Powerstone tokens. If the sacrificed artifact was legendary, draw a card."
Excavation Explosion78%
$0.11↓#20145↓0.29↓3.8 years
"this card deals 3 damage to any target. Create a tapped Powerstone token."
Arbalest Engineers77%
$0.16↑#23195↓0.22↓3.8 years
"• Create a tapped Powerstone token."
Static Net77%
$0.15↑#20372↓0.20↓3.8 years
"When this enchantment enters, you gain 2 life and create a tapped Powerstone token."
Junkyard Genius76%
$0.08↓#21490↓0.06↓3.8 years
"When this creature enters, create a tapped Powerstone token."
Urza's Command74%
$0.25↑#95870.12↓3.8 years
"• Create a tapped Powerstone token."
Powerstone Engineer74%
$0.18↑#25847↓0.12↓3.8 years
"When this creature dies, create a tapped Powerstone token."
Horned Stoneseeker74%
$0.12#23063↓0.00↓3.8 years
"When this creature enters, create a tapped Powerstone token."
Thran Spider73%
$0.27↑#104220.20↓3.8 years
"When this creature enters, you and target opponent each create a tapped Powerstone token."
Rousing Read73%
$0.21↑#19362↓0.00↓6.2 years↑
"When this Aura enters, draw two cards, then discard a card."
Terisiare's Devastation71%
$0.32↑#8222↑0.29↓3.8 years
"You lose X life and create X tapped Powerstone tokens. Then all creatures get -1/-1 until end of turn for each artifact you control."
Snow Day70%
$0.13↑#24332↓0.12↓5.4 years↑
"Draw two cards, then discard a card."