Osgood, Operation Double 
Legendary Creature — Human Alien Shapeshifter
$0.28 #13207 0.40 2.9 years
When you cast this spell, create a token that's a copy of it, except it isn't legendary.
: Add 
. Spend this mana only to cast an artifact spell or activate an ability of an artifact.Paradox — Whenever you cast a spell from anywhere other than your hand, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")
, Sacrifice this token: Draw a card.")Click a line or tag to filter
Cards similar to Osgood, Operation Double 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.
Purple Dragon Punks90%
$0.09↓#21801↓0.00↓0.5 years↓
": Add 
. Spend this mana only to cast an artifact spell or to activate an ability."
: Add . Spend this mana only to cast an artifact spell or to activate an ability."
Guidelight Optimizer90%
$0.21↓#110260.21↓1.6 years↓
": Add . Spend this mana only to cast an artifact spell or activate an ability."
: Add . Spend this mana only to cast an artifact spell or activate an ability."
Steelswarm Operator87%
$0.23↓#9262↑0.08↓1.1 years↓
": Add . Spend this mana only to cast an artifact spell."
: Add . Spend this mana only to cast an artifact spell."
Soldevi Machinist87%
$0.26↓#27664↓0.00↓31.3 years↑
": Add . Spend this mana only to activate abilities of artifacts."
: Add . Spend this mana only to activate abilities of artifacts."
Hargilde, Kindly Runechanter86%
$0.37↑#16908↓0.00↓4.9 years↑
": Add . Spend this mana only to cast artifact spells or activate abilities of artifacts."
: Add . Spend this mana only to cast artifact spells or activate abilities of artifacts."
Vedalken Engineer86%
$0.17↓#5982↑0.22↓22.6 years↑
": Add two mana of any one color. Spend this mana only to cast artifact spells or activate abilities of artifacts."
: Add two mana of any one color. Spend this mana only to cast artifact spells or activate abilities of artifacts."
Dalakos, Crafter of Wonders83%
$0.36↑#7058↑0.00↓6.6 years↑
": Add . Spend this mana only to cast artifact spells or activate abilities of artifacts."
: Add . Spend this mana only to cast artifact spells or activate abilities of artifacts."
Oaken Siren83%
$0.26↓#107020.06↓2.8 years
": Add . Spend this mana only to cast an artifact spell or activate an ability of an artifact source."
: Add . Spend this mana only to cast an artifact spell or activate an ability of an artifact source."
Vega, the Watcher83%
$0.28#2727↑0.15↓5.6 years↑
"Whenever you cast a spell from anywhere other than your hand, draw a card."
Omen Hawker82%
$0.36↑#5016↑0.00↓3.4 years
": Add . Spend this mana only to activate abilities."
: Add . Spend this mana only to activate abilities."
Renowned Weaponsmith82%
$0.08↓#147960.16↓11.6 years↑
": Add . Spend this mana only to cast artifact spells or activate abilities of artifacts."
: Add . Spend this mana only to cast artifact spells or activate abilities of artifacts."
Forensic Gadgeteer82%
$1.83↑#1391↑0.30↓2.6 years
"Whenever you cast an artifact spell, investigate."
Automated Artificer81%
$0.20↓#9007↑0.404.5 years↑
": Add . Spend this mana only to activate an ability or cast an artifact spell."
: Add . Spend this mana only to activate an ability or cast an artifact spell."
Lavinia, Foil to Conspiracy80%
$0.44↑#10126↑0.00↓2.5 years
"Whenever you cast your second spell each turn, investigate."
+1 more matching line
Jem Lightfoote, Sky Explorer80%
$0.15↓#20723↓0.11↓2.4 years
"At the beginning of your end step, if you haven't cast a spell from your hand this turn, draw a card."
Cargo Ship80%
$0.20↓#108800.18↓1.2 years↓
": Add . Spend this mana only to cast an artifact spell or activate an ability of an artifact source."
: Add . Spend this mana only to cast an artifact spell or activate an ability of an artifact source."
James, Wandering Dad // Follow Him80%
$0.32↑#8618↑0.332.5 years
": Add . Spend this mana only to activate abilities."
: Add . Spend this mana only to activate abilities."
Hydraulic Helper79%
$0.15↓#18652↓0.00↓0.2 years↓
": Add . This mana can't be spent to cast a nonartifact spell."
: Add . This mana can't be spent to cast a nonartifact spell."
Mishra's Workshop78%
$3249.99↑#3810↑1.55↑32.5 years↑
": Add . Spend this mana only to cast artifact spells."
: Add . Spend this mana only to cast artifact spells."
Sage of the Unknowable78%
$0.11↓#20543↓0.00↓2.2 years
": Add . Spend this mana only to cast a colorless spell or to activate an ability."
: Add . Spend this mana only to cast a colorless spell or to activate an ability."