Chart a Course 

Sorcery
Draw two cards. Then discard a card unless you attacked this turn.
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.
Rush of Inspiration // Crackling Falls 100%
$0.22#5094
"Draw two cards. Then discard a card at random unless you pay {E}{E} ."
Artificer's Epiphany 100%
$0.35#13984
"Draw two cards. If you control no artifacts, discard a card."
Tainted Indulgence 99%
$0.28#8585
"Draw two cards. Then discard a card unless there are five or more mana values among cards in your graveyard."
Tragic Lesson 99%
$0.17#17434
"Draw two cards. Then discard a card unless you return a land you control to its owner's hand."
Phyrexian Espionage 99%
$0.20#22677
"Draw two cards. If this spell was kicked, each opponent discards a card."
Grab the Prize 99%
$0.34#1473
"Draw two cards. If the discarded card wasn't a land card, this card deals 2 damage to each opponent."
Eureka Moment 98%
$0.27#1958
"Draw two cards. You may put a land card from your hand onto the battlefield."
Glimmerburst 98%
$0.16#9960
"Draw two cards. Create a 1/1 white Glimmer enchantment creature token."
Secrets of the Golden City 98%
$0.12#14568
"Draw two cards. If you have the city's blessing, draw three cards instead."
Nasty End 98%
$0.23#1924
"Draw two cards. If the sacrificed creature was legendary, draw three cards instead."
Field Research 98%
$0.09#16684
"Draw two cards. If this spell was kicked, draw three cards instead."
Jace's Triumph 98%
$0.21#18533
"Draw two cards. If you control a Jace planeswalker, draw three cards instead."