Damping Engine 
Artifact
$1.16 #22460 0.96 27.6 years
A player who controls more permanents than each other player can't play lands or cast artifact, creature, or enchantment spells. That player may sacrifice a permanent of their choice for that player to ignore this effect until end of turn.
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Cards similar to Damping Engine 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.
Ward of Bones84%
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"During your turn, your opponents can't cast spells or activate abilities of artifacts, creatures, or enchantments."