Treason of Isengard {2}{U}
Sorcery
Put up to one target instant or sorcery card from your graveyard on top of your library.
Amass Orcs 2. (To amass Orcs 2, put two +1/+1 counters on an Army you control. It's also an Orc. If you don't control an Army, create a 0/0 black Orc Army creature token first.)
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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.
Aquatic Alchemist // Bubble Up 97%
$0.20#14399
"Put target instant or sorcery card from your graveyard on top of your library."
Foray of Orcs 95%
$0.18#6857
"Amass Orcs 2. When you do, this card deals X damage to target creature an opponent controls, where X is the amassed Army's power."