Is it better ?
Hi,
I think so.
Anyway,
Ken
There is a MutTe base guideline for changing earth into an animal, so it isn't that miraculous.
Actually, I would consider Hair of the Gorgon just a variant of Eyes of the Cat, using the same Base 2 guideline: "change someone to give them a minor ability" - instead of the ability to see in the dark gained via cat eyes, a "mundanely" frightening appearance gained via snake hair. The "fear" itself is non-magical without a Mentem requisite, as Ovarwa pointed out - some folks might even find it attractive - but most people and animals would find it unsettling.
So, at R:Per, D:Conc, it's MuCo(An) 3: Base 2, +1 Conc. Note that the target is Ind, not Part, as in Eyes of the Cat, and the Requisite is free, again as in Eyes of the Cat. A Focus in Snakes would definitely apply, for what it's worth when casting a Level 3 spell.
The other end of the spectrum might be the Base 10 Guideline Turn a human into a land animal (with an Animal requisite), using T: Part.
An example similar spell would be the MuCo(An) 30 spell Gift of the Minotaur from page 85 of MoH.
I think so.
Point of order, completely nothing at all to do with rules:
Shouldn't it be Gorgon's Fearsome Hair?
So mefearful suggests that the hair would be full of fear and thus afraid, while presumably you want it to cause fear in others?
Or am I translating thing incorrectly here?
You are correct, but it's an easy mistake - "fear" and "fright" are similar concepts, but "fearful" means "full of fear" (scared) and both "fearsome" and "frightful" mean "scary".
Yay! Score 1 for the foreigner against english grammar! 
You are suddenly a snake, you didn't exist a second ago but now you've become incarnated as a snake. Except that instead of being a proper snake, an independent creature, you have only part of a body. You are half of a snake. You are trapped, the tail you should have doesn't exist. Instead, your torso is attached to a giant creature a creature one thousand times your mass, a creature that you have no control over. Are you even capable of pooping? of sex? how can you hunt? How can you even drink? You realize that you have not incorporated into this horror alone, dozens of others are trapped with you in this incomprehensible existence of torture. Together you writhe in horror and fear, but you have no voices, and the unfeeling colossus to which you are all attached doesn't even seem to acknowledge you.
Fearful could be correct.
Oh, absolutely!
However, it's proably not what the inventor wanted.
To be honest, I'd expect the Gorgon's Fearful Hair to be horrible curse, resulting in the victim being bitten to death by his/her own, terrified, hair.
While the Gorgon's Fearsome Hair (or the Gorgon's Frightful Hair) scaring others, by transforming the caster's own hair into snakes, under the caster's control.
Yes, I'm just being silly, apologies.
Hi,
When I first saw the spell, went through exactly the same thought process, from noting the grammar to noting the possible alternative spell.
A snake maga could have both. A third version with appropriate requisites could be cast on a subject, providing various protective functions until the snakes decide that the subject is not behaving appropriately or some condition occurs, at which point they turn on the subject.
And then there's the ever-popular (soon to be popular?) Intestines to Serpent spell.... (One of my problems with the AM magic system is that a snake maga is better off killing someone with a more ordinary spell.)
Anyway,
Ken
While you're not entirely wrong... most of the time just killing them is easier. This one... Killing someone with Perdo Corpus is base 30, voice +2 = 40. Killing someone by turning their intestines into snakes is Muto Corpus, base 10 for transformation, +2 voice, +1 part, +1 diameter, +1 arbitrary magnitude I didn't think about = 35; then you can factor in that PeCo probably won't get a snake mMF.
And you get to watch someone die over the course of two minutes as their internal organs try to burrow to safety.
So a magus could have your guts for garter(snake)s?
Hi,
Hmm. Maybe not so bad in this case! It does need an An requisite. It doesn't necessarily need the +1 magnitude; maybe for transformation to a different animal that does not have so good a resemblance. So if the base 10 guideline is sufficient, then it's MuCo(An) 30, which is probably lethal. Corpus specialists probably still prefer other spells, because requisites are painful. But magi with appropriate foci might like it indeed! It also has a great advantage, in that a Size +3 person will be affected by this spell!
Anyway,
Ken
There is a Cr(Re)An 25 spell in the TL book invoking obedient asp. Asps do inflict incapacitating wounds through venom, which is quite lethal. With level 35 my maga will be able to control packs of deadly snakes - no need to MuCo spells here.
Btw I was intending frightfull, but your ideas about poor snakes in creepy situation are both hilarious and deadly. I would say a spell changing someone's atm into an asp would disarm the target and place her in a dangerous situation - one arrow, two aims.
Hi,
Of course, to ReAn a spaghetti of snakes you first need to have the snakes. And snakes are not known for slithery swiftness, so they aren't going to do so well charging an enemy.
Of course you intended 'frightful'!
Yup, that would work too. I'd charge an extra magnitude for that though: An intenstine is so much closer to a snake! Just me.
Anyway,
Ken
Judgement call and definition for the hive-mind of the forums, since this is directly related to this particular thread: Muto Corpus and part target. Do you turn part of a person into another part? Or into another creature? Do you get to choose?
Serpent-self: Transforms a person into a serpent. MuCo(An) 20 (base 10 +1 diameter +1 touch) Taking this as a baseline spell.
Eyes of the Serpent: Transforms a person's eyes into that of a serpent's. MuCo(An) 25 (Base 10 +1 diameter +1 touch +1 part) A modified spell.. yes I know this could be done lower base level, but I'm just up-scaling the previous to part for this test. Is this how the spell works?
Eyes of Serpents: Transforms one of a person's eyes into a snake; level as above. Does the base for part only transform it into part of a snake, as above, or does it transform part of a target into a complete object? My left eye is now a snake, creeepy. I'm wondering if one or the other works.. or both work based on the spell you're casting.
Obviously, this is a precurser to me playing Ovarwa's apprentice and turning parts of people into snakes to honor my former master. Fingers-to-snakes!
Hi,
I think you get to choose.
Sure.
Depends on the spell you choose to cast. One spell can turn your eye into a snake, and you can maybe send it on missions. Another spell turns someone else's eye into a snake, and it behaves naturally.
Yessssssssss.
Anyway,
Ken
(and the rest is hissssssssstory)