19 cards where the artist name includes “jon foster”

Abyssal Nocturnus (Guildpact #43)
Arcbound Reclaimer (Darksteel #101)
Bioplasm (Guildpact #81)
Brutal Deceiver (Champions of Kamigawa #161)
Domineer (Mirrodin #33)
Dragonskull Summit (Magic 2010 #223)
Essence Scatter (Magic 2010 #51)
Extirpate (Planar Chaos #71)
Gossamer Phantasm (Planar Chaos #55)
Infiltrator il-Kor (Future Sight #37)
Kuro, Pitlord (Champions of Kamigawa #123)
Lost Hours (Future Sight #69)
Reshape (Darksteel #31)
Resounding Thunder (Shards of Alara #110)
Shah of Naar Isle (Future Sight #119)
Shock (Tenth Edition #232)
Stitch in Time (Guildpact #132)
Thorn-Thrash Viashino (Shards of Alara #116)
Time Warp (Magic 2010 #75)

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