The short answer is that in general you get a reasonable amount of value over a Raven's Crime, both information and disruption, however there is a significant delay on the relevance of that disruption
Drop me a line on X if you want to chat about Isshin
FINAL FANTASY summons have never felt this powerful in cardboard form
Except in some unusual cases, the cards you put on top of your library while surveilling will be the cards you draw
Stupor was an additional Sorcery for discard decks, Choking Sands brought cheap Land destruction back to Black and there was even Withering Boon, Counter target summon spell, for one colorless and one Black Mana, plus three life
To put it simply, you can use wildcards to craft mythics, uncommon, or any cards of the same rarity