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.
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Unknown Shores 100%
$0.10#7531
"{1}, {T}: Add one mana of any color."
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Arcum's Astrolabe 100%
$0.27#8545
"{1}, {T}: Add one mana of any color."
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Surveillance Room 100%
$0.24#15315
"{1}, {T}: Add one mana of any color."
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Conduit Pylons 100%
$0.28#1983
"{1}, {T}: Add one mana of any color."
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Heap Gate 100%
$0.38#3031
"{1}, {T}: Add one mana of any color."
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Planar Nexus 100%
$9.60#2629
"{1}, {T}: Add one mana of any color."
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Hall of Tagsin 100%
$0.33#6154
"{1}, {T}: Add one mana of any color."
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Cave of Temptation 100%
$0.18#9161
"{1}, {T}: Add one mana of any color."
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White Lotus Hideout 100%
$0.20#5725
"{1}, {T}: Add one mana of any color."
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Prophetic Prism 100%
$0.18#4851
"{1}, {T}: Add one mana of any color."
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Daily Bugle Building 100%
$0.21#3701
"{1}, {T}: Add one mana of any color."
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Hidden Grotto 100%
$0.24#2242
"{1}, {T}: Add one mana of any color."
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Captivating Cave 100%
$0.21#5959
"{1}, {T}: Add one mana of any color."
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Rumble Arena 100%
$0.23#3417
"{1}, {T}: Add one mana of any color."
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Abstergo Entertainment 100%
$2.48#2063
"{1}, {T}: Add one mana of any color."
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Shimmering Grotto 100%
$0.21#11443
"{1}, {T}: Add one mana of any color."
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H.E.R.B.I.E., Lovable Robot 100%
$1.03#17051
"{1}, {T}: Add one mana of any color."
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The Mycosynth Gardens 100%
$0.38#867
"{1}, {T}: Add one mana of any color."
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Mana Prism 100%
#24724
"{1}, {T}: Add one mana of any color."
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Prismatic Lens 100%
$0.39#1636
"{1}, {T}: Add one mana of any color."