Gollum, Riddle Master 

Legendary Creature — Halfling Horror
$1.67 #15367 0.22 0.2 years
As Gollum enters, choose odd or even. (Zero is even.)
Whenever an opponent casts a spell with mana value of the chosen quality, choose one that hasn't been chosen —
• Put a +1/+1 counter on Gollum.
• Each opponent loses 2 life and you gain 2 life.
• Draw a card.
Click a line or tag to filter
Cards similar to Gollum, Riddle Master 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.
Lavabrink Venturer82%
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"As this creature enters, choose odd or even."
+1 more matching line
Solarium Sentry82%
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"Whenever an opponent casts a spell with mana value 2 or less, you gain 2 life."
Skirmish Rhino82%
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"When this creature enters, each opponent loses 2 life and you gain 2 life."
Ashling's Prerogative80%
$0.63↓#182480.47↑19.0 years↑
"As this enchantment enters, choose odd or even."
+1 more matching line
Exsanguinate80%
$0.33↓#272↑0.78↑16.1 years↑
"Each opponent loses X life. You gain life equal to the life lost this way."
Blood Tithe80%
$0.30↓#11033↑0.38↑16.3 years↑
"Each opponent loses 3 life. You gain life equal to the life lost this way."
Sneering Shadewriter80%
$0.12↓#20550↓0.08↓0.5 years
"When this creature enters, each opponent loses 2 life and you gain 2 life."
Sol'Kanar the Tainted80%
$0.33↓#21442↓0.274.1 years↑
"• Each opponent loses 2 life and you gain 2 life."
+2 more matching lines
Silverquill Charm80%
$0.16↓#11311↑0.09↓0.5 years
"• Each opponent loses 3 life and you gain 3 life."
+1 more matching line
Trufflesnout80%
$0.22↓#24233↓0.00↓6.3 years↑
"• Put a +1/+1 counter on this creature."
+2 more matching lines
Dogged Pursuit80%
$0.17↓#129220.33↑5.7 years↑
"At the beginning of your end step, each opponent loses 1 life and you gain 1 life."
Drana's Emissary80%
$0.34↓#6763↑0.06↓11.0 years↑
"At the beginning of your upkeep, each opponent loses 1 life and you gain 1 life."
Zof Consumption // Zof Bloodbog78%
$0.17↓#9716↑0.06↓6.1 years↑
"Each opponent loses 4 life and you gain 4 life."
Vampire Neonate78%
$0.13↓#155880.06↓8.3 years↑
"
,
: Each opponent loses 1 life and you gain 1 life."
Lobelia, Defender of Bag End78%
$0.27↓#7324↑0.42↑3.3 years↑
"• Each opponent loses 2 life and you gain 2 life."
Vision, Synthezoid Avenger78%
$0.24↓#156110.220.3 years
"• Put a +1/+1 counter on this card."
+1 more matching line