1) Can it be written on an individual, as in a tattoo?
No. The spell effects, "Target: one touched object weighing no more than 10 lbs." You would have to
2)Does spell immunity work on Explosive Runes?
Yes. Spell Immunity works vs. any spell that allows SR, including Explosive Runes.
ok, basicly I have two questions regarding Explosive Runes:
1) Can it be written on an individual, as in a tattoo?
not a big deal if it can't it's just a curiosity.2)Does spell immunity work on Explosive Runes?
P.S. No I'm not just being a jerk I have a very neat roleplay/storyline idea for this.
You could put a sticky note on someone with the explosive rune on it...
It can be a quite potent effect if you stack a lot of them on your pet golem, who disregard the damage :)