Whenever you scry or surveil, look at the top card of your library. You may cast that card without paying its mana cost. Do this only once each turn. (Look at the card after you scry or surveil.)
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.
Arwen Undómiel84%
$0.26↓#7459↓0.67↑3.2 years↑
": Scry 2."
synergy-scry, scry, bottom-deck-manipulation
Crystal Ball82%
$0.40↓#7099↓0.22↑16.1 years↑
", : Scry 2."
scry, bottom-deck-manipulation, peek-library
Oggyar Battle-Seer82%
$0.05↓#29867↓0.075.4 years↑
": Scry 1."
scry, bottom-deck-manipulation, peek-library
Sigiled Starfish82%
$0.06↓#8942↓0.0012.3 years↑
": Scry 1."
scry, bottom-deck-manipulation, peek-library
Tidepool Turtle80%
$0.04↓#21882↓0.16↑4.0 years↑
": Scry 1."
scry, bottom-deck-manipulation, peek-library
Watchful Automaton80%
$0.05↓#28709↓0.27↑9.6 years↑
": Scry 1."
scry, bottom-deck-manipulation, peek-library
Galvanoth80%
$0.31↓#13054↓0.20↑15.6 years↑
"At the beginning of your upkeep, you may look at the top card of your library. You may cast it without paying its mana cost if it's an instant or sorcery spell."