A game of chance

A ball with points based on chance
Its colors deep and mysterious
The blue and purple flowing through
Like a running river

Rolling it is like a bird
It lands and rests
Clank, clank
It hits the table and it’s up to luck now

All different kinds like a species of animals
Big and small
Short and tall
In my eyes they're special
When you get lucky a sense of joy goes through you

Rolling around it is a kid
Rolling in the grass
Roll, roll, roll till you get it good
That fateful number 20