Coin of Mastery 
Artifact
$2.00 #5132 0.00 0.5 years
Each creature you control enters with an additional +1/+1 counter on it for each mana from an artifact source spent to cast it.
: Create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")Click a line or tag to filter
Cards similar to Coin of Mastery 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.
Glittermonger85%
$0.25↓#14339↓0.25↑4.4 years↑
": Create a Treasure token."
: Create a Treasure token."
Luke Cage, Hero for Hire85%
$0.50↓#17452↓0.000.2 years
"At the beginning of combat on your turn, create a Treasure token."
Stark Industries Executive82%
$0.14↓#17772↓0.000.2 years
"
, : Create a Treasure token."
, : Create a Treasure token."
Black Market Tycoon82%
$0.29↓#11345↓0.22↑4.4 years↑
": Create a Treasure token."
: Create a Treasure token."
Rakdos Cluestone80%
$0.14↓#10565↓0.0013.3 years↑
": Add 
or 
."
: Add or ."
Rakdos Locket80%
$0.20↓#8382↓0.29↑7.6 years↑
": Add or ."
: Add or ."
Seer's Lantern80%
$0.06↓#10964↓0.0010.6 years↑
": Add 
."
: Add ."
Deadeye Plunderers79%
$0.22↓#15816↓0.008.9 years↑
"
: Create a Treasure token."
: Create a Treasure token."
Cursed Mirror79%
$0.78↓#453↑0.40↑5.4 years↑
": Add ."
: Add ."
Dungeon Map79%
$0.25↓#8698↓0.47↑5.1 years↑
": Add ."
: Add ."
Crowded Crypt78%
$0.42↓#2421↑0.054.9 years↑
": Add ."
: Add ."
Infernal Idol78%
$0.24↓#16849↓0.31↑3.8 years↑
": Add ."
: Add ."
Bloodstone Cameo78%
$0.29↓#22458↓0.0025.9 years↑
": Add or ."
: Add or ."
Galadriel, Gift-Giver77%
$7.46↑#9468↓0.21↑3.2 years↑
"• Create a Treasure token."
Trove of Temptation76%
$0.20↓#16782↓0.12↑8.9 years↑
"At the beginning of your end step, create a Treasure token."
Noble's Purse75%
$0.26↓#6425↓0.38↑4.2 years↑
", Remove a coin counter from this artifact: Create a Treasure token."
, Remove a coin counter from this artifact: Create a Treasure token."
Gala Greeters75%
$0.57↓#1700↑0.20↑4.4 years↑
"• Create a tapped Treasure token."
Rakdos Keyrune75%
$0.18↓#14206↓0.33↑13.9 years↑
": Add or ."
: Add or ."
Magnifying Glass75%
$0.12↓#9290↓0.0010.4 years↑
": Add ."
: Add ."
Forsworn Paladin74%
$0.34↓#8657↓0.005.1 years↑
"
, , Pay 1 life: Create a Treasure token."
, , Pay 1 life: Create a Treasure token."