Vision Quest {X}{U}{R}
Sorcery
Search your library and/or graveyard for an artifact creature card with mana value X or less and put it onto the battlefield with X additional +1/+1 counters on it. If X is 4 or greater, it gains haste until end of turn. If you search your library this way, shuffle.
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.