Perfected Theory 
Instant
$0.18 #21911 0.24 0.0 years
Choose one —
• Target creature has base power and toughness 1/1 until end of turn.
• Target creature has base power and toughness 4/5 until end of turn.
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Cards similar to Perfected Theory 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.
Diminish90%
$0.04↓#200430.1716.3 years↑
"Target creature has base power and toughness 1/1 until end of turn."
Square Up88%
$0.07↓#27928↓0.00↓5.5 years↑
"Target creature has base power and toughness 4/4 until end of turn."
Ovinize87%
$0.07↓#175390.39↑19.7 years↑
"Until end of turn, target creature loses all abilities and has base power and toughness 0/1."
Humble87%
$0.14↓#221630.1428.0 years↑
"Until end of turn, target creature loses all abilities and has base power and toughness 0/1."
Zhalfirin Shapecraft84%
$0.15↓#14140↑0.00↓3.5 years↑
"Target creature has base power and toughness 4/3 until end of turn."
Flatline82%
$0.42↑#7470↑0.06↓3.0 years↑
"Creatures your opponents control have base power and toughness 0/1 until end of turn."
Quandrix Charm82%
$0.20↑#7359↑0.210.5 years
"• Target creature has base power and toughness 5/5 until end of turn."
+1 more matching line