56 cards where (the artist name includes “andrew” and the artist name includes “robinson”)

Aether Tide (Exodus #27)
Alarum (Mirage #2)
Anaconda (Ninth Edition #229)
Angel's Mercy (Magic 2013 #3)
Armored Pegasus (Classic Sixth Edition #5)
Back to Basics (Urza's Saga #62)
Bestial Menace (Midnight Hunt Commander #134)
Bribery (Eighth Edition #64)
Catastrophe (Urza's Saga #6)
Civic Guildmage (Mirage #7)
Clear (Urza's Saga #7)
Dauthi Embrace (Tempest #120)
Dauthi Marauder (Tempest Remastered #96)
Death Speakers (Fifth Edition #24)
Destructive Urge (Urza's Saga #180)
Dracoplasm (Tempest Remastered #208)
Drain Life (Fifth Edition #156)
Flare (Fifth Edition #230)
Glimpse the Future (Magic 2014 #58)
Heat Stroke (Weatherlight #107)
Hidden Herd (Urza's Saga #262)
Hivis of the Scale (Mirage #182)
Howling Banshee (Duel Decks Anthology: Garruk vs. Liliana #43)
Hurricane (Classic Sixth Edition #237)
Jwari Scuttler (Rise of the Eldrazi #73)
Lightning Hounds (Mercadian Masques #201)
Lure of Prey (Mirage #227)
Mind Games (Stronghold #38)
Noetic Scales (Urza's Saga #304)
Pendrell Flux (Urza's Saga #87)
Pendrell Mists (Weatherlight #47)
Pillarfield Ox (Conspiracy #76)
Power Sink (Vintage Masters #88)
Pulse Tracker (Foundations #612)
Quickening Licid (Tempest #36)
Ray of Command (Duel Decks: Jace vs. Vraska #29)
Reclaim (Magic Origins #195)
Root Greevil (Planeshift #91)
Sabertooth Cobra (Mirage #238)
Scabland (Tempest Remastered #243)
Seascape Aerialist (Zendikar #64)
See Beyond (Planechase Anthology #25)
Somnophore (Urza's Saga #97)
Soul Net (Classic Sixth Edition #313)
Swamp (Fifth Edition #438)
Thada Adel, Acquisitor (Worldwake #40)
Thalakos Deceiver (Stronghold #45)
Thalakos Drifters (Tempest Remastered #70)
Thalakos Sentry (Tempest #95)
Torch Slinger (Duel Decks: Zendikar vs. Eldrazi #63)
Vampire Nocturnus (Magic Online Promos #33105)
Veiled Apparition (Urza's Saga #107)
Vengeance (Starter 1999 #29)
Viashino Sandstalker (Ninth Edition #225)
Warren Instigator (Zendikar #154)
Zirilan of the Claw (Mirage #204)

This search is finished. Now the real work can begin.