Fairy Teasing

Teasing fairies is fun. They leave behind such pretty clouds of glittering dust when chased. Just hope they don't get you back for it.

Use a total of 100 usable Small Plant Houses (This is my house! Back off!) and Dancing Fairies (Doooon't touch me! *puff*).

Unlike the Dancing Fairies, you can use the Small Plant Houses uninterruptedly, which is the faster way of getting this achievement. Just make sure you're trying on one of the two versions of it that can really be used, since most of them can't. One possibility is to use the Small Plant House near NPC Tooth Fairy in Ab’Dendriel.