Cumulative upkeep or (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
When this creature dies, you gain 2 life for each age counter on it.
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.
Jötun Owl Keeper92%
$0.08↓#265550.4720.1 years
"Cumulative upkeep or "
+1 more matching line
upkeep-cost, counters-matter, drawback
Uktabi Efreet92%
$0.04↓#318360.5929.2 years↑
"Cumulative upkeep "
upkeep-cost, drawback
Illusions of Grandeur92%
$16.46↑#10357↑0.71↑31.3 years↑
"Cumulative upkeep "
upkeep-cost, drawback, lifegain
Earthen Goo92%
$0.18↓#315380.08↓20.1 years
"Cumulative upkeep or "
+1 more matching line
upkeep-cost, drawback
Volunteer Reserves92%
$0.19↓#294070.00↓29.2 years↑
"Cumulative upkeep "
upkeep-cost, drawback
Vexing Sphinx92%
$0.12↓#22041↑0.06↓20.1 years
"When this creature dies, draw a card for each age counter on it."