Tinybones, Trinket Thief {1}{B}
Legendary Creature — Skeleton Rogue
At the beginning of each end step, if an opponent discarded a card this turn, you draw a card and you lose 1 life.
{4}{B}{B}: Each opponent with no cards in hand loses 10 life.
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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.
Voidforged Titan 94%
$0.18#17342
"At the beginning of your end step, if a nonland permanent left the battlefield this turn or a spell was warped this turn, you draw a card and lose 1 life."
Asylum Visitor 86%
$0.35#7130
"At the beginning of each player's upkeep, if that player has no cards in hand, you draw a card and you lose 1 life."
Ludevic, Necro-Alchemist 86%
#13644
"At the beginning of each player's end step, that player may draw a card if a player other than you lost life this turn."
Shanid, Sleepers' Scourge 82%
$2.30#4510
"Whenever you play a legendary land or cast a legendary spell, you draw a card and you lose 1 life."
Mindblade Render 82%
$0.24#5840
"Whenever your opponents are dealt combat damage, if any of that damage was dealt by a Warrior, you draw a card and you lose 1 life."
Tallyman of Nurgle 81%
$0.39#12630
"At the beginning of your end step, if a creature died this turn, you draw a card and you lose 1 life. If seven or more creatures died this turn, instead you draw seven cards and you lose 7 life."
Invasion of Fiora // Marchesa, Resolute Monarch 80%
$0.60#6219
"At the beginning of your upkeep, if you haven't been dealt combat damage since your last turn, you draw a card and you lose 1 life."