ROBOTS!

author=Cap_H
Yeah, it's an interesting concept to have both. Imagine weaker robots getting critical damage from electricity and then encountering stronger ones, which would heal instead. That would present an interesting twist and players would need a new strategy.
Introducing both at once would be confusing on the other hand.

Yes! I thought this as well but I wanted to see what others thought. This is the route I think I will end up going, with more 'advanced' technology having defenses that protect against electricity (or outright absorbing it and charging them up). Similar to the huge robot in Divinity 1 getting charged from Air spells.