Rainbow Rod Or Magic Harp?

[Imp]

Just killed the twins, wich one should I make?

[Blargo]

Well, I'd say Magic Harp is more useful, but Rainbow Rod has an achievement tied to it when you craft it.

Just do whichever you think is more important first.

[windfisch]

The harp is excellent for killing the destroyer and plantera.
The rainbow rod has a high mana drain and is very clicky (you need to release click to let the projectile fly freely, so high dps with it means clicking rapidly), i don't find much use in it.

[LadyClipton Ice Tii]

Rainbow Rod is mainly for your own accuracy and decent range, harp is more of an aoe/rapid fire dps weapon. Both are probably good to have on hand but there's probably things you'll want other than them anyway.

[Imp]

hmm... I think Il craft harp first then rod, thank you for the support awesome people! :D