13 cards where the card types include “legendary” and the set is “ust”

Baron Von Count (Unstable #127)
Dr. Julius Jumblemorph (Unstable #130)
Grusilda, Monster Masher (Unstable #132)
Kindslaver (Unstable #150)
Krark's Other Thumb (Unstable #151)
Mary O'Kill (Unstable #138)
Ol' Buzzbark (Unstable #134)
Phoebe, Head of S.N.E.A.K. (Unstable #135)
Spike, Tournament Grinder (Unstable #69)
The Big Idea (Unstable #76)
The Grand Calcutron (Unstable #131)
Urza, Academy Headmaster (Unstable #136)
X (Unstable #137)

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