Peacekeeper {2}{W}
Creature — Human
At the beginning of your upkeep, sacrifice this creature unless you pay {1}{W}.
Creatures can't attack.
click a line to search just that ability, click more to combine them
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.
Haazda Shield Mate 93%
$0.29#29217
"At the beginning of your upkeep, sacrifice this creature unless you pay {W}{W}."
Collective Restraint 89%
$14.61#6738
"Creatures can't attack you unless their controller pays {X} for each creature they control that's attacking you, where X is the number of basic land types among lands you control."
Ghostly Prison 88%
$4.56#161
"Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you."
Koskun Falls 88%
$15.68#10792
"Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you."
Windborn Muse 88%
$0.72#1011
"Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you."
Propaganda 88%
$2.03#115
"Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you."
Reclamation 84%
$0.62#27185
"Black creatures can't attack unless their controller sacrifices a land of their choice for each black creature they control that's attacking."
Arboria 84%
$0.30#17788
"Creatures can't attack a player unless that player cast a spell or put a nontoken permanent onto the battlefield during their last turn."
Forbidding Spirit 82%
$0.16#15834
"When this creature enters, until your next turn, creatures can't attack you or planeswalkers you control unless their controller pays {2} for each of those creatures."
Flooded Woodlands 82%
$0.83#23276
"Green creatures can't attack unless their controller sacrifices a land of their choice for each green creature they control that's attacking."
Akron Legionnaire 82%
#28174
"Except for creatures named this card and artifact creatures, creatures you control can't attack."