Nature for Delta Litwick

Currently soft resetting the delta Litwick encounter. Would timid or modest be better for it?

I tend to see what natures are used in GSC for the base forms of deltas to give me a starting point. Chandelure often is run with a timid nature since its speed isn’t amazing and it already has a powerful special attack stat. I think that with d. chandelure’s hiden ability boosting fairy moves that the extra speed would be what I go for.