Contagion Clasp 
Artifact
$0.34 #1416 0.29 16.1 years
When this artifact enters, put a -1/-1 counter on target creature.
, 
: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)Click a line or tag to filter
Cards similar to Contagion Clasp 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.
Contagion Engine95%
$12.59↑#1854↓0.74↑16.1 years
", : Proliferate twice."
, : Proliferate twice."+1 more matching line
Cultbrand Cinder94%
$0.11↓#30659↓0.00↓18.5 years↑
"When this creature enters, put a -1/-1 counter on target creature."
Skinrender94%
$0.23↓#5692↓0.69↑16.1 years
"When this creature enters, put three -1/-1 counters on target creature."
Karn's Bastion92%
$2.77↑#206↑0.237.5 years↓
", : Proliferate."
, : Proliferate."
Viral Drake90%
$0.64↑#7164↓0.68↑15.4 years
"
: Proliferate."
: Proliferate."
Merfolk Skydiver89%
$0.26↓#6733↓0.06↓7.5 years↓
"
: Proliferate."
: Proliferate."+1 more matching line
Blight Rot88%
$0.28↓#8917↓0.04↓0.7 years↓
"Put four -1/-1 counters on target creature."
Scar86%
$0.23↓#19802↓0.1918.5 years↑
"Put a -1/-1 counter on target creature."
Banewhip Punisher84%
$0.25↓#11192↓0.06↓9.3 years↓
"When this creature enters, you may put a -1/-1 counter on target creature."
Instill Infection84%
$0.09↓#24167↓0.3516.1 years
"Put a -1/-1 counter on target creature."
Eyeblight Assassin82%
$0.09↓#22239↓0.06↓11.3 years↓
"When this creature enters, target creature an opponent controls gets -1/-1 until end of turn."
Blister Beetle82%
$0.04↓#25026↓0.43↑18.0 years↑
"When this creature enters, target creature gets -1/-1 until end of turn."
Farbog Boneflinger82%
$0.08↓#30945↓0.18↓14.7 years↓
"When this creature enters, target creature gets -2/-2 until end of turn."
Soul Snuffers82%
$0.26↓#4957↓0.56↑18.2 years↑
"When this creature enters, put a -1/-1 counter on each creature."
Grim Affliction82%
$0.28↓#4567↓0.3015.4 years
"Put a -1/-1 counter on target creature, then proliferate."
Gnarled Effigy82%
$0.15↓#27769↓0.07↓18.5 years↑
", : Put a -1/-1 counter on target creature."
, : Put a -1/-1 counter on target creature."
Lulu, Stern Guardian82%
$0.30↓#3421↓0.65↑1.4 years↓
": Proliferate."
: Proliferate."
Pith Driller81%
$0.15↓#28174↓0.2815.4 years
"When this creature enters, put a -1/-1 counter on target creature."
Cartouche of Ambition81%
$0.14↓#15685↓0.259.5 years↓
"When this Aura enters, you may put a -1/-1 counter on target creature."
Fourth Bridge Prowler81%
$0.22↓#15029↓0.06↓9.7 years↓
"When this creature enters, you may have target creature get -1/-1 until end of turn."