Guidelight Optimizer 
Artifact Creature — Robot
$0.21 #11026 0.21 1.6 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%
$0.09↓#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."
Steelswarm Operator98%
$0.23↑#92620.08↓1.1 years
": Add . Spend this mana only to cast an artifact spell."
: Add . Spend this mana only to cast an artifact spell."
Soldevi Machinist98%
$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 Runechanter97%
$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 Engineer96%
$0.17↓#5982↑0.2222.6 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."
Oaken Siren96%
$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."
Dalakos, Crafter of Wonders95%
$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."
Omen Hawker94%
$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 Weaponsmith93%
$0.08↓#14796↓0.1611.6 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."
Automated Artificer92%
$0.20↓#90070.40↑4.5 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."
James, Wandering Dad // Follow Him92%
$0.32↑#8618↑0.33↑2.5 years
": Add . Spend this mana only to activate abilities."
: Add . Spend this mana only to activate abilities."
Hydraulic Helper92%
$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."
Cargo Ship90%
$0.20↓#108800.181.2 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."
Sage of the Unknowable90%
$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."
Osgood, Operation Double90%
$0.28↑#132070.40↑2.9 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%
$0.20↓#17013↓0.48↑6.4 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%
$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."
Somberwald Sage86%
$0.59↑#2559↑0.2014.3 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."
Beastcaller Savant86%
$0.49↑#4977↑0.2510.9 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."
Pit Automaton84%
$0.25↑#119490.171.6 years
": Add . Spend this mana only to activate abilities."
: Add . Spend this mana only to activate abilities."