Time Bomb 
Artifact
At the beginning of your upkeep, put a time counter on this artifact.
{1}, {T}, Sacrifice this artifact: This artifact deals damage equal to the number of time counters on it to each creature and each player.
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.
Infinite Hourglass 100%
$0.41#20350
"At the beginning of your upkeep, put a time counter on this artifact."
Midnight Clock 91%
$0.67#619
"At the beginning of each upkeep, put an hour counter on this artifact."
Ravenous Amulet 86%
$0.19#7003
"{4}, {T}, Sacrifice this artifact: Each opponent loses life equal to the number of soul counters on this artifact."
Pyxis of Pandemonium 86%
$0.28#11680
"{7}, {T}, Sacrifice this artifact: Each player turns face up all cards they own exiled with this artifact, then puts all permanent cards among them onto the battlefield."
Golden Urn 82%
$0.24#18932
"{T}, Sacrifice this artifact: You gain life equal to the number of charge counters on this artifact."
+1 more matching line
Mindsplice Apparatus 82%
$1.02#2797
"At the beginning of your upkeep, put an oil counter on this artifact."
Barrin's Codex 81%
$0.47#22924
"At the beginning of your upkeep, you may put a page counter on this artifact."
+1 more matching line
Repurposing Bay 80%
$0.62#3933
"{2}, {T}, Sacrifice another artifact: Search your library for an artifact card with mana value equal to 1 plus the sacrificed artifact's mana value, put that card onto the battlefield, then shuffle. Activate only as a sorcery."