If a party becomes incompetent, the court upon motion served as provided in § 15-6-25(a) may allow the action to be continued by or against his guardian, conservator, or guardian ad litem.
SDCL 15-6-25(b)
If a party becomes incompetent, the court upon motion served as provided in § 15-6-25(a) may allow the action to be continued by or against his guardian, conservator, or guardian ad litem.
SDCL 15-6-25(b)