Hammer of Ruin 
Artifact — Equipment
$0.15 #24214 0.19 16.7 years
Equipped creature gets +2/+0.
Whenever equipped creature deals combat damage to a player, you may destroy target Equipment that player controls.
Equip 
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Cards similar to Hammer of Ruin 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.
Rustspore Ram88%
$0.15#30875↓0.40↑23.0 years↑
"When this creature enters, destroy target Equipment."
Acid Web Spider88%
$0.23↑#18949↑0.00↓16.1 years
"When this creature enters, you may destroy target Equipment."
Rustmouth Ogre84%
$0.07↓#30367↓0.45↑23.0 years↑
"Whenever this creature deals combat damage to a player, you may destroy target artifact that player controls."
Caustic Wasps84%
$0.95↑#15209↑0.47↑27.0 years↑
"Whenever this creature deals combat damage to a player, you may destroy target artifact that player controls."
Manriki-Gusari82%
$0.33↑#247560.00↓21.4 years↑
"Equipped creature gets +1/+2 and has "
: Destroy target Equipment.""
+1 more matching line
Dawning Purist82%
$0.20↑#279920.2124.0 years↑
"Whenever this creature deals combat damage to a player, you may destroy target enchantment that player controls."
Trygon Predator79%
$0.10↓#3580↑0.38↑20.5 years↑
"Whenever this creature deals combat damage to a player, you may destroy target artifact or enchantment that player controls."
Ultima Weapon78%
$4.24↑#4743↑0.68↑1.4 years↓
"Whenever equipped creature attacks, destroy target creature an opponent controls."
+1 more matching line
Latulla's Orders78%
$0.20↑#201930.2426.4 years↑
"Whenever enchanted creature deals combat damage to defending player, you may destroy target artifact that player controls."
Worldslayer77%
$4.14↑#8690↑1.55↑23.0 years↑
"Whenever equipped creature deals combat damage to a player, destroy all permanents other than this Equipment."
Bladegriff Prototype76%
$0.32↑#7126↑0.285.9 years↓
"Whenever this creature deals combat damage to a player, destroy target nonland permanent of that player's choice that one of your opponents controls."
Argentum Armor76%
$2.73↑#2225↑0.40↑16.1 years
"Whenever equipped creature attacks, destroy target permanent."
+2 more matching lines
Light of Judgment76%
$0.14↓#14886↑0.07↓1.4 years↓
"this card deals 6 damage to target creature. Destroy up to one Equipment attached to that creature."
Heartseeker76%
$2.52↑#19118↑0.50↑22.7 years↑
"Equipped creature gets +2/+1 and has "
, Unattach this card: Destroy target creature.""
Sword of Sinew and Steel74%
$2.69↑#4229↑0.58↑7.4 years↓
"Whenever equipped creature deals combat damage to a player, destroy up to one target planeswalker and up to one target artifact."
+1 more matching line
Flamespeaker's Will74%
$0.16↑#205390.00↓12.5 years↓
"Whenever enchanted creature deals combat damage to a player, you may sacrifice this Aura. If you do, destroy target artifact."
Corrosive Ooze74%
$0.19↑#15519↑0.218.5 years↓
"Whenever this creature blocks or becomes blocked by an equipped creature, destroy all Equipment attached to that creature at end of combat."