Roll For Fate

Residing deep within every living creature's mind is an imaginary object. The object is made of a pearly white material resembling marble and has twenty triangular faces. On any given face, a solid gold number one through twenty is engraved into the sculpture. Whenever a creature decided to take an action of significance, the elegant marble figure 'rolled' in the back of its' mind. After a short period of indecisiveness, the icosahedron will stop rolling and only one side, and in turn, one number, will be facing upwards. That gilded value determines the success of the significant action.