Inasmuch as this effect is any colour, it's white, I think. Dogged Hunter.

Interesting. I had a hard time deciding where to place it, not knowing that Dogged Hunter exists, and I would have put it in white second to last. In fact, I wasn't sure any color would get it on its own, though I suppose white would be the best single color, since it's arguably the best color at dealing with any permanent type. It seems like Dogged Hunter wouldn't be printed today, since white is more likely to get token love in the form of things like Intangible Virtue.

I wonder if Pinocchioken makes more sense as an instant so it can hose cards like this.

I can certainly see that flavour-wise this is dubious in white. With this name it certainly works in blue's two enemy colours.

I always had the feeling that Winnow played in this space too. That said, if I was to rewrite the color pie, one of my first objectives would be to have red establish itself as the "I like individuality" color. I'd push token destruction, and double permanent destruction on that color. Seems like a good way for blue/red to have an out against permanents it couldn't otherwise destroy, too. Copy it, then destroy the original.

I'm not a huge fan of red destroying enchantments. I also think that Winnow doesn't really fit in the current color pie, but then, Renounce the Guilds doesn't seem to fit to me either.