Jeweled Lotus 
Artifact
{T}, Sacrifice this artifact: Add three mana of any one color. Spend this mana only to cast your commander.
click a line to search just that ability, click more to combine them
Cards that do something similar 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.
Astrolabe 91%
#25902
"{1}, {T}, Sacrifice this artifact: Add two mana of any one color. Draw a card at the beginning of the next turn's upkeep."
Implements of Sacrifice 91%
$0.61#27683
"{1}, {T}, Sacrifice this artifact: Add two mana of any one color."
Glittering Stockpile 83%
$0.40#2228
"{T}, Sacrifice this artifact: Add X mana of any one color, where X is the number of stash counters on this artifact."
Lotus Blossom 82%
$0.40#11571
"{T}, Sacrifice this artifact: Add X mana of any one color, where X is the number of petal counters on this artifact."
Chromatic Sphere 81%
$0.37#5167
"{1}, {T}, Sacrifice this artifact: Add one mana of any color. Draw a card."