You mean like the ones from Equestria, yes? They are a very intriguing looking bunch I must admit. N-Nothing like the unicorns or alicorns in my own world. But I believe you're right, that it has something to do with the environment of their own world.

[ Helios shakes his head and laughs a little. ] Oh, yes, but just barely. They have some residual personality from the caster but otherwise they just, um, do as I command them to.