Banshee's Blade 
Artifact — Equipment
$0.30 #16256 0.12 23.0 years
Equipped creature gets +1/+1 for each charge counter on this Equipment.
Whenever equipped creature deals combat damage, put a charge counter on this Equipment.
Equip (: Attach to target creature you control. Equip only as a sorcery.)
(: Attach to target creature you control. Equip only as a sorcery.)Click a line or tag to filter
Cards similar to Banshee's Blade 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.
Opaline Bracers80%
$0.16↓#26257↓0.00↓22.4 years
"Equipped creature gets +X/+X, where X is the number of charge counters on this Equipment."
+1 more matching line
Gavel of the Righteous80%
$0.27↓#5203↑0.00↓4.5 years↓
"Equipped creature gets +1/+1 for each counter on this Equipment."
+1 more matching line
Chainsaw80%
$1.22↑#3795↑0.26↑2.1 years↓
"Equipped creature gets +X/+0, where X is the number of rev counters on this Equipment."
+1 more matching line
Copper Carapace80%
$0.10↓#26154↓0.00↓15.7 years↓
"Equip 
"
"
Lightning Reaver76%
$0.57↑#20758↓0.28↑17.5 years↓
"Whenever this creature deals combat damage to a player, put a charge counter on it."
Golden Urn73%
$0.25↓#193780.00↓16.1 years↓
"At the beginning of your upkeep, you may put a charge counter on this artifact."
Umezawa's Jitte72%
$2.44↑#2968↑0.58↑21.7 years↓
"Whenever equipped creature deals combat damage, put two charge counters on this card."
+2 more matching lines
Luxior, Giada's Gift71%
$4.51↑#4404↑0.104.5 years↓
"Equipped creature gets +1/+1 for each counter on it."