Topaz Dragon // Entropic Cloud {4}{B}{B} // {1}{B}
Creature — Dragon // Instant — Adventure
Flying, deathtouch
Creatures you control gain deathtouch until end of turn. (Then exile this card. You may cast the creature later from exile.)
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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.
Undercity Uprising 98%
$0.22#18883
"Creatures you control gain deathtouch until end of turn. Then target creature you control fights target creature you don't control."
Ready // Willing 82%
$0.31#15570
"Creatures you control gain deathtouch and lifelink until end of turn."