About the future of the arkentools (if this has been kicked around before, my bad )
The arkentool users will eventually be linked up (like the eyemancers), it will recreate erf and it will be epic.
Charlie will do the linking, since the arkendish controls thinkamancy.
The pliers will bring life into "new erf" since they control life/death.
The hammer will bring nature, weather, or both into erf. Since the hammer shoots lightning (weather), and controls the (so far) only nonsentient arkenunit.
The last one is a complete toss-up, but my money is on reshaping the landmasses and/or wiping out the old erf (via volcano maybe?)
I know the comic states four casters in a link would be impossible, but the arkendish should be able to do it, no problemo.