Leeching Sliver 
Creature — Sliver
$0.56 #11172 0.75 12.3 years
Whenever a Sliver you control attacks, defending player loses 1 life.
Click a line or tag to filter
Cards similar to Leeching Sliver 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.
Thorncaster Sliver80%
$1.59↑#13802↓0.32↓13.3 years
"Sliver creatures you control have "Whenever this creature attacks, it deals 1 damage to any target.""
Synapse Sliver76%
$6.08↑#5887↑0.58↓23.7 years↑
"Whenever a Sliver deals combat damage to a player, its controller may draw a card."
Brood Sliver76%
$4.92↑#5293↑0.62↓23.7 years↑
"Whenever a Sliver deals combat damage to a player, its controller may create a 1/1 colorless Sliver creature token."
First Sliver's Chosen74%
$0.22↓#17102↓0.07↓7.4 years↓
"Sliver creatures you control have exalted."
Tempered Sliver74%
$0.32↓#116410.35↓7.4 years↓
"Sliver creatures you control have "Whenever this creature deals combat damage to a player, put a +1/+1 counter on it.""
Essence Sliver73%
$8.16↑#8531↑0.13↓23.7 years↑
"Whenever a Sliver deals damage, its controller gains that much life."
Hunter Sliver72%
$0.55↓#13697↓0.6923.7 years↑
"All Sliver creatures have provoke."
Campaign of Vengeance72%
$0.26↓#129040.00↓10.2 years↓
"Whenever a creature you control attacks, defending player loses 1 life and you gain 1 life."
Capricious Sliver70%
$0.67↑#13701↓0.07↓3.2 years↓
"Sliver creatures you control have "Whenever this creature deals combat damage to a player, exile the top card of your library. You may play that card this turn.""
Opaline Sliver70%
$2.50↑#108840.94↑20.0 years↑
"All Slivers have "Whenever this permanent becomes the target of a spell an opponent controls, you may draw a card.""
Diffusion Sliver70%
$1.74↑#4335↑1.11↑12.3 years
"Whenever a Sliver creature you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays 
."
."
Taunting Sliver70%
$2.28↑#100821.06↑3.2 years↓
"Sliver creatures you control have "When this creature enters, goad target creature an opponent controls.""