Glint-Sleeve Siphoner 
Creature — Human Rogue
$0.25 #17971 0.26 9.6 years
Menace
Whenever this creature enters or attacks, you get 
(an energy counter).
(an energy counter).At the beginning of your upkeep, you may pay . If you do, you draw a card and you lose 1 life.
. If you do, you draw a card and you lose 1 life.Click a line or tag to filter
Cards similar to Glint-Sleeve Siphoner 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.
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for each creature you control."
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"Whenever this creature attacks, you get ."
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"When this creature enters, you get ."
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"Whenever you attack, you get ."
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"When this creature enters, you get ."
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"When this creature enters, you get ."
."+1 more matching line
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"
, Pay : Draw a card."
, Pay : Draw a card."+1 more matching line
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"When this creature enters, you get ."
."
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"When this creature enters, you get ."
."
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"When this creature enters, you get ."
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"Menace, haste"
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"Whenever a creature you control attacks, you get ."
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"When this creature enters, you get ."
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"When this creature enters, you get ."
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"When this creature enters, you get ."
."