29 cards where (the artist name includes “michael” and the artist name includes “phillippi”)

Autochthon Wurm (Ravnica: City of Guilds #191)
Citizen (Ultimate Masters Tokens #1)
Complaints Clerk (Unfinity #7)
Darien, King of Kjeldor (Murders at Karlov Manor Commander #59)
Drift of Phantasms (Ravnica Remastered #42)
Durkwood Tracker (Time Spiral #194)
Hazmat Suit (Used) (Unstable #57)
Heroes Remembered (Planar Chaos #7)
Icatian Crier (Ultimate Masters #22)
Icatian Javelineers (Dominaria Remastered #9)
Kjeldoran War Cry (Coldsnap #13)
Light of Sanction (Ravnica: City of Guilds #24)
Penregon Strongbull (The Brothers' War #147)
Ravaging Riftwurm (Future Sight #135)
Skirk Ridge Exhumer (Future Sight #77)
Sly Spy (Unstable #67f)
Sly Spy (Unstable #67c)
Sly Spy (Unstable #67a)
Sly Spy (Unstable #67e)
Sly Spy (Unstable #67b)
Sly Spy (Unstable #67d)
Snickering Squirrel (Unsanctioned #45)
Souvenir T-Shirt (Unfinity #192)
Spell Suck (Unstable #45)
Spotter Thopter (The Brothers' War #80)
Take Possession (Modern Masters #66)
Ticketomaton (Unfinity #195)
Treasure (Unfinity Tokens #13)
Truth or Tale (Time Spiral #89)

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