Ward of Bones 
Artifact
$29.08 #12367 1.48 18.2 years
Each opponent who controls more creatures than you can't cast creature spells. The same is true for artifacts and enchantments.
Each opponent who controls more lands than you can't play lands.
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Cards similar to Ward of Bones 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.
Damping Engine83%
$1.22↓#22746↓1.22↓27.7 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."
Grand Abolisher72%
$17.55↓#256↑1.64↑15.3 years↓
"During your turn, your opponents can't cast spells or activate abilities of artifacts, creatures, or enchantments."
Rivalry72%
$0.36↓#25929↓0.27↓27.7 years↑
"At the beginning of each player's upkeep, if that player controls more lands than each other player, this enchantment deals 2 damage to them."
Verge Rangers72%
$0.24↓#5533↑0.28↓6.5 years↓
"As long as an opponent controls more lands than you, you may play lands from the top of your library."
Myrel, Shield of Argive70%
$17.75↓#1539↑0.98↓3.9 years↓
"During your turn, your opponents can't cast spells or activate abilities of artifacts, creatures, or enchantments."
Aura of Silence70%
$6.95↓#2207↑1.35↓29.4 years↑
"Artifact and enchantment spells your opponents cast cost 
more to cast."
more to cast."
Territorial Dispute70%
$0.43↓#29056↓1.5227.0 years↑
"Players can't play lands."