They come in various flavours, and in the interests of finding a good image for this post, I googled them. Hilariously, image search came up with the following as its first choice:
|According to Google, this is a slaad.|
|Actual slaadi, not actual size|
They are delightfully dangerous critters. Part of their charm, of course, is that they look slightly daft. Indeed, in the early days of DandD, they were regarded as a bit of a joke right up to the point that they infected you with some unspeakable disease. Later incarnations spent quite a bit of time emphasising their horribleness despite their appearance, with successive artists working on making them menacing. Largely succeeding as well.
This is a good trick if you can pull it off. The immortal flumph is still waiting to become truly menacing, despite some good recent efforts. For those unaware of this dungeon denizen, I present the original incarnation:
|Flumph. It falls on your head.|
|Flumph you might be more worried about.|