Hall Monitor {R}
Creature — Lizard Shaman
Haste
{1}{R}, {T}: Target creature can't block this turn.
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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.
Burning-Tree Bloodscale 85%
$0.05#29561
"{2}{R}: Target creature can't block this creature this turn."