13 cards where the card types include “basic” and the artist name includes “ron spears”

Island (Lorwyn #287)
Mountain (Secret Lair Drop #1366)
Plains (Arena New Player Experience #22)
Plains (Magic Online Promos #255)
Plains (Asia Pacific Land Program #4)
Swamp (Lorwyn #291)
Swamp (Secret Lair Drop #1192)
Swamp (Arena New Player Experience #27)
Swamp (Arena New Player Experience #28)
Swamp (Magic Online Promos #253)
Swamp (Magic Online Promos #257)
Swamp (Asia Pacific Land Program #10)
Swamp (Asia Pacific Land Program #15)

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