Cryptic Gateway 
Artifact
Tap two untapped creatures you control: You may put a creature card from your hand that shares a creature type with each creature tapped this way onto the battlefield.
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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.
Dermotaxi 99%
$0.24#12436
"Tap two untapped creatures you control: Until end of turn, this Vehicle becomes a copy of the exiled card, except it's a Vehicle artifact in addition to its other types."
Kirol, Attentive First-Year 99%
$0.36#7955
"Tap two untapped creatures you control: Copy target triggered ability you control. You may choose new targets for the copy. Activate only once each turn."
Honeymoon Hearse 99%
$0.15#22243
"Tap two untapped creatures you control: This Vehicle becomes an artifact creature until end of turn."
Prosperous Partnership 93%
$7.34#6123
"Tap three untapped creatures you control: Create a Treasure token."
Spurred Wolverine 88%
$0.06#30673
"Tap two untapped Beasts you control: Target creature gains first strike until end of turn."
Supportive Parents 87%
$0.20#12304
"Tap two untapped creatures you control: Add one mana of any color."
Tangle Tumbler 86%
$0.17#16959
"Tap two untapped tokens you control: This Vehicle becomes an artifact creature until end of turn."
Nullmage Shepherd 83%
$1.02#5973
"Tap four untapped creatures you control: Destroy target artifact or enchantment."