Archway of Innovation
Land
This land enters tapped unless you control an Island.
{T}: Add {U}.
{U}, {T}: The next spell you cast this turn has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
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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.
Castle Vantress 100%
$0.33#974
"This land enters tapped unless you control an Island."
+1 more matching line
Mystic Sanctuary 90%
$1.00#172
"This land enters tapped unless you control three or more other Islands."
Agna Qel'a 87%
$1.07#2895
"This land enters tapped unless you control a basic land."
+1 more matching line
Shipwreck Marsh 87%
$7.43#231
"This land enters tapped unless you control two or more other lands."
+1 more matching line
Dreamroot Cascade 87%
$1.21#180
"This land enters tapped unless you control two or more other lands."
Shattered Sanctum 87%
$1.76#280
"This land enters tapped unless you control two or more other lands."
Overgrown Farmland 87%
$2.98#289
"This land enters tapped unless you control two or more other lands."
Stormcarved Coast 87%
$2.13#189
"This land enters tapped unless you control two or more other lands."
+1 more matching line
Drowned Catacomb 86%
#109
"This land enters tapped unless you control an Island or a Swamp."
+1 more matching line