Merge pull request #883 from Steeldarkeagel/patch-19

Update c23171610.lua

script/c23171610.lua

@@ -21,8 +21,11 @@ end
 function c23171610.target(e,tp,eg,ep,ev,re,r,rp,chk)
 	if chk==0 then return Duel.IsExistingMatchingCard(c23171610.filter,tp,LOCATION_MZONE,0,1,nil) end
 end
+function c23171610.filter2(c,e)
+	return c:IsFaceup() and c:IsRace(RACE_MACHINE) and not c:IsImmuneToEffect(e)
+end
 function c23171610.activate(e,tp,eg,ep,ev,re,r,rp)
-	local sg=Duel.GetMatchingGroup(c23171610.filter,tp,LOCATION_MZONE,0,nil)
+	local sg=Duel.GetMatchingGroup(c23171610.filter2,tp,LOCATION_MZONE,0,nil,e)
 	local c=e:GetHandler()
 	local tc=sg:GetFirst()
 	while tc do