Reliably triggering Explosive Runes

[Solo]

Here's a method for triggering Explosive Runes reliably.

Have one person Arcane Mastery so he can take 10 on caster level checks. He can then cast Erase and Dispel Magic at the minimum caster level necessary and guarantee a low roll. This allows these spells to be cast on Explosive Runes and trigger them.

Does this work?

[Unbeliever]

I think Amaneusis is probably the cheapest and most reliable way to trigger Explosive Runes.  It's in the Spell Compendium.

[Vicerious]

I think Amaneusis is probably the cheapest and most reliable way to trigger Explosive Runes.  It's in the Spell Compendium.

Dispel ward (Spell Compendium) is also a handy spell for triggering runes.  It's 1st level, only works on abjurations, and you roll a dispel check at a max of +10, but it's medium range vs amanuensis' close range.

Amanuensis is 0th level, guaranteed to trigger, close range.
Dispel ward is 1st level, dispel check up to +10, medium range.

[Cagemarrow]

So it will have to be worked out with your DM what actually triggers the rune or can be used to disarm them, can you paint over them to prevent them from going off? What if you destroy the object its etched on, can you burn it off? This will vary by DM so make sure to discuss it with them first. Remember that failure to disarm a magic trap's DC by 5 or more automatically triggers it and Explosive Runes has a DC of 28. Don't forget the -2 penalty for not using the correct tools.

Take one rank in disable device since it is trained only, now take the ways you worked out with your DM about what can count for disarm attempts and use them as a means of creating a trigger. For example possible ways to cause the runes to trigger, etch them on objects that tend to be destroyed on impact such as a crossbow bolt or clay jar. Put them on flammable material and ignite for a time released trigger mechanism. Send small summoned creatures with an etched item to read the runes while next to targets. Binder's with the Malphus summoned Raven/Dove are great for this. Use glass vials filled with paint to try and cover the rune while targets are near, or setup some sort of Mine with the rune on the bottom layer and a paint filled vessel above it that will break and seep onto the rune when stepped on.

[Arcanist]

I think Amaneusis is probably the cheapest and most reliable way to trigger Explosive Runes.  It's in the Spell Compendium.

Dispel ward (Spell Compendium) is also a handy spell for triggering runes.  It's 1st level, only works on abjurations, and you roll a dispel check at a max of +10, but it's medium range vs amanuensis' close range.

Amanuensis is 0th level, guaranteed to trigger, close range.
Dispel ward is 1st level, dispel check up to +10, medium range.

Enlarge Amanuensis is the same spell level as Dispel Ward and has better range now