Heavyweight Demolisher {7}
Artifact Creature — Construct
Menace
At the beginning of your upkeep, tap this creature unless you pay {3}.
Unearth {6}{R}{R} ({6}{R}{R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)
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.
Sangrophage 97%
$0.05#29378
"At the beginning of your upkeep, tap this creature unless you pay 2 life."
Apocalypse Demon 89%
$0.28#15673
"At the beginning of your upkeep, tap this creature unless you sacrifice another creature."
Demonic Hordes 87%
#24808
"At the beginning of your upkeep, unless you pay {B}{B}{B}, tap this creature and sacrifice a land of an opponent's choice."
Devouring Sugarmaw // Have for Dinner 85%
$0.24#20794
"At the beginning of your upkeep, you may sacrifice an artifact, enchantment, or token. If you don't, tap this creature."
Minion of Leshrac 83%
#23516
"At the beginning of your upkeep, this creature deals 5 damage to you unless you sacrifice a creature other than this creature. If this creature deals damage to you this way, tap it."
Mishra's War Machine 80%
$0.41#25644
"At the beginning of your upkeep, this creature deals 3 damage to you unless you discard a card. If it deals damage to you this way, tap it."