Gollum, Riddle Master 

Legendary Creature — Halfling Horror
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.
every line here is clickable: search one ability on its own, or a few together
min match slid to 70% to fit the blend, blended scores are averages and averages land lower.
Cards that do something similar 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.
Sol'Kanar the Tainted 81%
$0.26#20649
"• Each opponent loses 2 life and you gain 2 life."
+2 more matching lines
Maestros Charm 80%
$0.2#8121
"• Each opponent loses 3 life and you gain 3 life."
+1 more matching line
Silverquill Charm 79%
$0.25#12765
"• Each opponent loses 3 life and you gain 3 life."
+1 more matching line
Lobelia, Defender of Bag End 78%
$0.29#7306
"• Each opponent loses 2 life and you gain 2 life."
+1 more matching line
Typhoid Mary, Fractured 72%
$0.35#15844
"• Bloody Mary — Each opponent loses 2 life and you gain 2 life."
+1 more matching line