The slaad (pluralized as slaadi or slaads) is a fictional monster in the Dungeons & Dragons fantasy role-playing game. They are Outsiders that resemble giant humanoid toads of various colors.
The slaadi were created by Charles Stross for the Fiend Factory column in White Dwarf magazine. It was later compiled (along with many other monsters submitted to the magazine) into the TSR UK book, Fiend Folio Tome of Creatures Malevolent and Benign (1981). Stross said of their creation,
For much of their existence, the slaadi were the subject of jokes by D&D players due to their distinctly frog-like appearance, which was overemphasized in early artistic depictions of the monsters. With the advent of the Planescape campaign setting, TSR, Inc. made an effort to create a more appropriately fearsome image of the slaadi, with their toad qualities toned down in favor of showing their more frightening aspects as beings of pure chaos. This Planescape envisioning of the slaadi carried forth into the 3rd Edition of the D&D game and has persisted ever since.
Savageland, another time, another world, where under a cold blue sun, the
evil Duke Kron, half brother of the murdered ruler of Savageland, seeks to
deny the rightful heir - Braveheart, his destiny.
Duke Kron cannot do this until he has found and extinguished the mythical
dragon Moroth, who guards the Shield of Darkness (a force for good or evil
to whom whoever posseses it).
The Duke must keep Braveheart from finding the shield. He therefore sets
out to destroy Braveheart and all men of good heart by using his dark
legions of damned souls, all what have been put under the spell of the Blue
Flame, which the Duke keeps burning by the rare ore that is dug by the
slave children in the underground mines. As events unfold Elenor,
Braveheart's daughter, is accidently killed by himself, while trying to
summon mystic forces against the Duke.
Braveheart, swears vengeance! The Duke must be stopped!