Spell editing questions for TFT 1.12

1) How do you make a spell target undead and summoned only?

2) How do you make holy light a damaging spell? I know 1 way (setting the healing points to 0 and enchenching the spell via triggers) but how do you do it object editor only?

1. Set targets to "Undead" and "Summoned"

2. Give the heal field a negative integer. In order to do this you need to set something though I think. Its a "Properties" or "Preferences" page in the WE, on that page is a box or something that says something like "Allow negative integers" (boolean?)

Check it then go set the heal field to negative.

For holy light I imagine it would be better to use another direct damage spell as a base and just use the holylight special effect.

thats what i did 4 my foh spell(idea from d2) but with object editor u wont beable 2 do it

to use negative values the checkbox is found at files/preferences - general tab - allow negative real values in object editor, of small note though this will cause friendly units to get hurt and enemy undead units to get healed.