Help with coral id

[Albertan22]

So this little specimen started as a tiny little patch of polyps on my liverock that somehow survived the cycle. Now 10 months later it's spread to 10 times it's original size and has started growing branches! Anybody know what it might be? It's polyps look like that of an SPS, but until it started branching in the last few days I honestly didn't think that it could actually be an SPS coral...