you can't set a mapspell or a damagezone to only hurt specific characters.
#ACT
Mov A0 %USERMAP
Mov A1 %USERx
Mov A2 %USERY
Mov N1 %A1
Mov N2 %A2
Mov N3 %A1
Mov N4 %A2
ForMatStr "%s,%s" %A0 %N1
Mov A3 %A9
ForMatStr "%s,%s,%s" %A3 %N2 %N3
Mov A3 %A9
Mov A8 ",+d500, +t5, +h"
ForMatStr...