Not really sure this is needed, esp as a lore benefit. By the time anyone that would be interested in it would get the lore needed for such a benefit, they'd likely already have Trolls Blood and greatly reduced RTs, why not just make a macro or short script to do this for you?

Starchitin

A severed gnomish hand crawls in on its fingertips and makes a rude gesture before quickly decaying and rotting into dust. A gust of wind quickly scatters the dust.