On a whim I have decided that Kílta has unrelated lexical items for the transitive (ásëno /ʔaː.ˈsə.no/) and intransitive (volko) sense of change.
Nirika në mëmítotá si ásëno hír.
war TOP plans ACC change.PFV AS.EXPECTED
The war changed the plans.
The final particle hír marks things the speaker sees as expected or predictable.
Ël në ta lícha li vurui ásëno?
3SG TOP that mess ABL how change.PFV
How did she change (it) from that mess?
I still haven't decided which root will be the source for derived nouns. Probably the intransitive version, but it needs thinking about.
I also might want to add some nuance to the causative of the intransitive, volkëno.