9 cards where the illustration contains “gavel”

Damning Verdict (New Capenna Commander #15)
Demonic Attorney (Limited Edition Alpha #102)
Disorder in the Court (Crimson Vow Commander #67)
Gavel of the Righteous (New Capenna Commander #183)
Grand Arbiter Augustin IV (Secret Lair Drop #1483)
Puppet's Verdict (Mercadian Masques #208)
Rules Lawyer (Judge Gift Cards 2017 #9)
Trial // Error (Dissension #158)
Twisted Justice (Ravnica: City of Guilds #237)

The message was clear to Sorin—time to search for something else.