The Yangster

{w}: Create a white Crayon artifact token.
{u}: Create a blue Crayon artifact token.
{1}: Create a black Crayon artifact token.
{r}: Create a red Crayon artifact token.
{g}: Create a green Crayon artifact token.
The Yangster gets +X/+1 for each Crayon you control, where X is equal to the number of black Crayons you control minus 5.