Bumped up to uncommon to make space in green common creatures.

Needs the horrible animate artifact wording, unless it's intended to cygnify artifact creatures, which seems a bit good.

huh?

Ok, kinda not thinking about the 'you control' bit; I guess it turning darksteel collossi into darksteel kittens isn't such a problem, then.

V's referring to the way Animate Artifact says "If it's not already a creature". Read "cygnify" as "Lignify". But I don't think it's a problem, because it can only hit artifacts you control, and there won't be many cases where you'll want to make them 1/2. Maybe on an Ornithopter :)

EDIT: Snap.

Oh, that reminds me...

Why is this Green and not Blue? Seems out of color.

In this block, green is the one that animates artifacts - there's also Bestow Freedom and there's expected to be a green rare that does it too. Is that out of colour pie? Perhaps it's different from where the effect has been so far. But I'd argue it's very much in flavour for green's philosophy. Green is after all the colour of life. Green dislikes artifice, but blesses life wherever it finds it, no matter how icky that life might be, or how much of a distortion of the original natural order it might be. Just look at all the green Phyrexians in the Scars of Mirrodin block. So I say it's very much in green's philosophy to bring artifacts to life. (It's certainly green that gets to do that to lands, including artifact lands: Living Terrain and Lifespark Spellbomb and so on.) Think of it as green bringing out the natural potential for life inside the artificial construction.

There's precedent in Titania's Song, for what that's worth.