Tendrils of Despair {B}
Sorcery
As an additional cost to cast this spell, sacrifice a creature.
Target opponent discards two cards.
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.
Psychic Whorl 97%
$0.08#15239
"Target opponent discards two cards. Then if you control a Rat, surveil 2."
Eriette's Whisper 96%
$0.18#21311
"Target opponent discards two cards. Create a Wicked Role token attached to up to one target creature you control."
No Way Out 95%
$0.10#19359
"Target opponent discards two cards. You create a 2/2 black Zombie creature token with decayed."
Skull Raid 93%
$0.16#21781
"Target opponent discards two cards. If fewer than two cards were discarded this way, you draw cards equal to the difference."
Demon of Catastrophes 100%
$0.32#14830
"As an additional cost to cast this spell, sacrifice a creature."