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.
Promise of Aclazotz // Foul Rebirth 91%
$0.32#7327
"At the beginning of your end step, you may sacrifice a non-Demon creature. If you do, populate."
Ball Lightning 81%
$0.21#8813
"At the beginning of the end step, sacrifice this creature."
Hell's Thunder 81%
$0.25#19855
"At the beginning of the end step, sacrifice this creature."
Ichorid 81%
$0.61#22667
"At the beginning of the end step, sacrifice this creature."
Spark Elemental 81%
$0.28#19240
"At the beginning of the end step, sacrifice this creature."
Spark Trooper 81%
$0.18#18598
"At the beginning of the end step, sacrifice this creature."
Putrefax 81%
$0.37#15096
"At the beginning of the end step, sacrifice this creature."
Impetuous Devils 81%
$0.27#15995
"At the beginning of the end step, sacrifice this creature."
Lightning Serpent 81%
$3.10#19540
"At the beginning of the end step, sacrifice this creature."
Hellspark Elemental 81%
$0.19#19259
"At the beginning of the end step, sacrifice this creature."
Lightning Skelemental 81%
$0.90#10605
"At the beginning of the end step, sacrifice this creature."
Blistering Firecat 81%
$7.39#17421
"At the beginning of the end step, sacrifice this creature."
Groundbreaker 81%
$1.33#15674
"At the beginning of the end step, sacrifice this creature."
Arc Runner 81%
$0.17#16420
"At the beginning of the end step, sacrifice this creature."