REQUIRES 1.2.0 ALPHA PATCH 4248 OR LATER
We now have the Recruit Tunneller spell, a way to create Tunnellers that works a little different to Create Imp. This file contains a couple of possible variants for people interested in other combinations (e.g. reskinning Create Imp and Imps, or just changing some effects around).
Also, if you want to use the generic "Create Digger" variant, the graphics are:
SymbolSprites = 815 813
PointerSprites = 408