Guidelight Optimizer 
Artifact Creature — Robot
$0.22 #10990 0.12 1.7 years
: Add . Spend this mana only to cast an artifact spell or activate an ability.Click a line or tag to filter
Cards similar to Guidelight Optimizer 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 Punks100%
$0.11↓#21500↓0.150.6 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."
Steelswarm Operator98%
$0.25↑#90260.181.2 years
": Add . Spend this mana only to cast an artifact spell."
: Add . Spend this mana only to cast an artifact spell."
Soldevi Machinist98%
$0.25↑#28027↓0.0931.4 years↑
": Add 
. Spend this mana only to activate abilities of artifacts."
: Add . Spend this mana only to activate abilities of artifacts."
Hargilde, Kindly Runechanter97%
$0.36↑#17126↓0.055.0 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 Engineer96%
$0.16↓#6060↑0.0922.7 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."
Oaken Siren96%
$0.20↓#109530.00↓2.9 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."
Dalakos, Crafter of Wonders95%
$0.35↑#7081↑0.22↑6.7 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."
Omen Hawker94%
$0.38↑#4999↑0.063.5 years↑
": Add . Spend this mana only to activate abilities."
: Add . Spend this mana only to activate abilities."
Renowned Weaponsmith93%
$0.08↓#14991↓0.0611.7 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."
Automated Artificer92%
$0.22#90960.064.7 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."
James, Wandering Dad // Follow Him92%
$0.30↑#8736↑0.00↓2.6 years
": Add . Spend this mana only to activate abilities."
: Add . Spend this mana only to activate abilities."
Hydraulic Helper92%
$0.12↓#17630↓0.22↑0.3 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."
Cargo Ship90%
$0.23↑#107520.061.4 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."
Sage of the Unknowable90%
$0.12↓#20875↓0.00↓2.3 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."
Osgood, Operation Double90%
$0.32↑#13429↓0.25↑3.0 years↑
": Add . Spend this mana only to cast an artifact spell or activate an ability of an artifact."
: Add . Spend this mana only to cast an artifact spell or activate an ability of an artifact."
Humble Naturalist88%
$0.16↓#17349↓0.146.5 years↑
": Add one mana of any color. Spend this mana only to cast a creature spell."
: Add one mana of any color. Spend this mana only to cast a creature spell."
Mishra's Workshop88%
$3699.99↑#3678↑1.60↑32.6 years↑
": Add . Spend this mana only to cast artifact spells."
: Add . Spend this mana only to cast artifact spells."
Beastcaller Savant86%
$0.56↑#5069↑0.28↑11.0 years↑
": Add one mana of any color. Spend this mana only to cast a creature spell."
: Add one mana of any color. Spend this mana only to cast a creature spell."
Somberwald Sage85%
$0.49↑#2577↑0.1914.5 years↑
": Add three mana of any one color. Spend this mana only to cast creature spells."
: Add three mana of any one color. Spend this mana only to cast creature spells."
Pit Automaton84%
$0.22#117300.00↓1.7 years
": Add . Spend this mana only to activate abilities."
: Add . Spend this mana only to activate abilities."