I’m planning on using 21 of the colors from this moody advent, and adding a plain black from my stash to make 22 colors.

Color order:
2
4
5
8
10
11
12
Black
17
16
24

Color 23 for picot if run out of colors

So knit entire ball, but leave enough yarn to do fade 2x

To make sure you have enough, measure 4x of yarn to the length of the latest row.