Let's give it Filter!What Pokemon can do is limited by what they are, if you get what I'm saying.
Looking at serebii's description page for Thunder, only three Ice pokemon learn it (Lapras, Froslass, and Regice) and only two Bugs (Volbeat and Illumise), so it doesn't really seem practical. Charge Beam is even more limited. Thunderpunch is an option, but it seems that unless we want to give this guy a glowing butt, he's not going to have Thunder. Hidden Power Electric doesn't seem like a viable substitute, either.
Remember though, there is still the new move that will be created....