Viscerid Deepwalker {4}{U}
Creature — Homarid Warrior
{U}: This creature gets +1/+0 until end of turn.
Suspend 4—{U} (Rather than cast this card from your hand, you may pay {U} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)
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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.
Azimaet Drake 99%
$0.14#31454
"{U}: This creature gets +1/+0 until end of turn. Activate only once each turn."
Drake Hatchling 99%
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"{U}: This creature gets +1/+0 until end of turn. Activate only once each turn."