Opaline Sliver 
Creature — Sliver
$2.50 #10884 0.94 20.0 years
All Slivers have "Whenever this permanent becomes the target of a spell an opponent controls, you may draw a card."
Click a line or tag to filter
Cards similar to Opaline 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.
Shapers' Sanctuary85%
$0.58↓#120690.40↓9.1 years↓
"Whenever a creature you control becomes the target of a spell or ability an opponent controls, you may draw a card."
Synapse Sliver84%
$6.08↑#5887↑0.58↓23.7 years↑
"Whenever a Sliver deals combat damage to a player, its controller may draw a card."
Surrak, Elusive Hunter82%
$0.53↓#7191↑0.07↓1.5 years↓
"Whenever a creature you control or a creature spell you control becomes the target of a spell or ability an opponent controls, draw a card."
Warden of the Woods80%
$0.21↓#20293↓0.00↓6.3 years↓
"Whenever this creature becomes the target of a spell or ability an opponent controls, you may draw two cards."
Battle Mammoth78%
$0.45↓#8498↑0.11↓5.7 years↓
"Whenever a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card."
Rayne, Academy Chancellor77%
$0.50↓#20690↓0.06↓27.4 years↑
"Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card. You may draw an additional card if this card is enchanted."
Tenured Concocter75%
$0.10↓#25803↓0.10↓0.5 years↓
"Whenever this creature becomes the target of a spell or ability an opponent controls, you may draw a card."
Old Fat Spider74%
$0.22↓#19879↓0.04↓0.2 years↓
"Whenever this creature becomes the target of a spell or ability an opponent controls, draw a card."
Cactarantula74%
$0.11↓#16385↓0.16↓2.5 years↓
"Whenever this creature becomes the target of a spell or ability an opponent controls, you may draw a card."
Ruric Thar, Biomagus74%
$0.21↓#23468↓0.11↓0.0 years↓
"Whenever this card becomes the target of a spell or ability an opponent controls, draw a card."
Regal Sliver73%
$0.85↓#99920.06↓3.2 years↓
"Sliver creatures you control have "When this creature enters, Slivers you control get +1/+1 until end of turn if you're the monarch. Otherwise, you become the monarch.""
Watcher Sliver72%
$0.16↓#18162↓0.29↓20.0 years
"All Sliver creatures get +0/+2."
Diffusion Sliver72%
$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 
."
."
Elrond, Master of Healing72%
$0.38↓#6873↑0.07↓3.3 years↓
"Whenever a creature you control with a +1/+1 counter on it becomes the target of a spell or ability an opponent controls, you may draw a card."
Altanak, the Thrice-Called72%
$0.24↓#7475↑0.15↓2.1 years↓
"Whenever this card becomes the target of a spell or ability an opponent controls, draw a card."
Fey Steed72%
$0.35↓#17514↓0.15↓5.2 years↓
"Whenever a creature or planeswalker you control becomes the target of a spell or ability an opponent controls, you may draw a card."
Reparations72%
$4.70↑#22801↓0.20↓30.0 years↑
"Whenever an opponent casts a spell that targets you or a creature you control, you may draw a card."
Dormant Sliver71%
$0.40↓#15254↓0.22↓19.7 years
"All Slivers have "When this permanent enters, draw a card.""
Mnemonic Sliver70%
$0.36↓#19911↓0.47↓29.0 years↑
"All Slivers have ", Sacrifice this permanent: Draw a card.""
, Sacrifice this permanent: Draw a card.""
Mistform Sliver70%
$0.22↓#25240↓0.19↓23.7 years↑
"All Slivers have ": This permanent becomes the creature type of your choice in addition to its other types until end of turn.""
: This permanent becomes the creature type of your choice in addition to its other types until end of turn.""