The shifting plague of the viashino destroys all creatures

Whenever a creature enters, destroy all other creatures that share a color with it. They can't be regenerated.

As this enchantment enters, choose a color. All nonland permanents are the chosen color.

Haste (This creature can attack and as soon as it comes under your control.) At the beginning of the end step, return this creature to its owner's hand. (Return it only if it's on the battlefield.)