Dragonskull Summit
Land
This land enters tapped unless you control a Swamp or a Mountain.
{T}: Add {B} or {R}.
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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.
Dalkovan Encampment 100%
$0.50#3597
"This land enters tapped unless you control a Swamp or a Mountain."
Woodland Cemetery 90%
$0.43#113
"This land enters tapped unless you control a Swamp or a Forest."
+1 more matching line
Clifftop Retreat 85%
$0.17#82
"This land enters tapped unless you control a Mountain or a Plains."
+1 more matching line
Rootbound Crag 85%
$0.24#127
"This land enters tapped unless you control a Mountain or a Forest."
+1 more matching line
Drowned Catacomb 84%
#109
"This land enters tapped unless you control an Island or a Swamp."
+1 more matching line
Castle Embereth 83%
$0.32#1055
"This land enters tapped unless you control a Mountain."
+1 more matching line
Arena of Glory 83%
$7.57#381
"This land enters tapped unless you control a Mountain."
+1 more matching line
Sulfur Falls 83%
$0.21#81
"This land enters tapped unless you control an Island or a Mountain."
+1 more matching line
Foreboding Ruins 82%
#328
"As this land enters, you may reveal a Swamp or Mountain card from your hand. If you don't, this land enters tapped."
+1 more matching line
Dwarven Mine 81%
$0.34#3056
"This land enters tapped unless you control three or more other Mountains."