Hellkite Tyrant {4}{R}{R}
Creature — Dragon
Flying, trample
Whenever this creature deals combat damage to a player, gain control of all artifacts that player controls.
At the beginning of your upkeep, if you control twenty or more artifacts, you win the game.
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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.
Knuckles the Echidna 94%
$16.74#2121
"At the beginning of your upkeep, if you control thirty or more artifacts, you win the game."
Drooling Ogre 82%
$0.15#21949
"Whenever a player casts an artifact spell, that player gains control of this creature."
Neurok Spy 81%
$0.04#28857
"This creature can't be blocked as long as defending player controls an artifact."
Scrapdiver Serpent 81%
$0.22#20414
"This creature can't be blocked as long as defending player controls an artifact."
Bouncing Beebles 81%
$0.26#26627
"This creature can't be blocked as long as defending player controls an artifact."