Milne, of the Guildless

devoid (this card has no color)
{8}: Put Milne, of the Guildless from your
command zone onto the battlefield
{x}{t}: attach an Octopus Hat token on x target creatures
Treat this token as an equipment artifact.
You control each creature as long as each color of
magic ({w}{u}{b}{r}{g}) has the same number of
Creatures in play with Octopus Hat tokens
equipped.