On Fire Emblem Radiant Dawn how do you get a druid?

Answer 1

You can't get a druid, but, on a second playthrough of the game, you can get a dark sage. You do this by having Machiah choose not to kill Pelleas. In the second time you play through, you get a third choice to not kill him at all. Do this, and you get it in chapter 4-2.

There are no druids in this game. All sages turn into Arch Sages.