16 cards where the illustration contains “all-ten-guild-sym...”

Amateur Auteur (Unstable #3a)
Awe for the Guilds (Dragon's Maze #31)
Cartel Aristocrat (Gatecrash #150)
Detective of the Month (Murders at Karlov Manor Commander #21)
Glaive of the Guildpact (Guilds of Ravnica #236)
Glass of the Guildpact (Ravnica Allegiance #233)
Guildmages' Forum (Guilds of Ravnica #250)
Guildscorn Ward (Gatecrash #15)
Jace, the Living Guildpact (Magic 2015 #62)
Maze's End (Dragon's Maze #152)
Murder (Murders at Karlov Manor #95)
Pillar of the Paruns (Dissension #176)
Renounce the Guilds (Dragon's Maze #5)
Seal of the Guildpact (Commander 2015 #54)
Tablet of the Guilds (Return to Ravnica #235)
Tome of the Guildpact (Ravnica Allegiance #242)

Their mind whirled with grand plans, never thinking of what might happen if they got to the end of the list.