30 cards where the name includes “guildmage” and the cards are multicolored

Azorius Guildmage (Ravnica Remastered #165)
Boros Guildmage (Ravnica Remastered #168)
Clan Guildmage (Ravnica Allegiance #162)
Combine Guildmage (Ravnica Allegiance #163)
Conclave Guildmage (Guilds of Ravnica #162)
Cult Guildmage (Ravnica Allegiance #164)
Dimir Guildmage (Ravnica: Clue Edition #186)
Duskmantle Guildmage (Gatecrash #158)
Golgari Guildmage (Ravnica: Clue Edition #194)
Gruul Guildmage (Ravnica Remastered #189)
House Guildmage (Guilds of Ravnica #177)
Izzet Guildmage (Ravnica Remastered #191)
Korozda Guildmage (Commander Anthology #181)
League Guildmage (Double Masters 2022 #241)
Legion Guildmage (Guilds of Ravnica #187)
New Prahv Guildmage (Return to Ravnica #181)
Nivix Guildmage (Commander 2017 #186)
Orzhov Guildmage (Ravnica: Clue Edition #201)
Rakdos Guildmage (Ravnica Remastered #214)
Rix Maadi Guildmage (Return to Ravnica #192)
Selesnya Guildmage (Ravnica: Clue Edition #207)
Senate Guildmage (Ravnica Allegiance #204)
Simic Guildmage (Ravnica Remastered #223)
Skarrg Guildmage (Gatecrash #196)
Sunhome Guildmage (Modern Masters 2017 #191)
Swarm Guildmage (Guilds of Ravnica #201)
Syndicate Guildmage (Ravnica Allegiance #211)
Vitu-Ghazi Guildmage (Commander 2019 #206)
Vizkopa Guildmage (Iconic Masters #211)
Zameck Guildmage (Gatecrash #209)

Though this query has ended, its relics still slumber in New Argive.