Magic Marker of Elbereth
The "potion" is a stored mini-ward contained inside a marker or pen. This potion can be used defensively or offensively by either dropping it at your feet or throwing it at the target, where it will spray its contents around the target, forming a magic circle.

For some reason, it does not work on minotaurs.

Supernatural Martial Artist
(More a character template, but with some unique stuff.)

Supernatural Martial Arts are a blend of Channeling, Ritual and Shapeshifting, without altering your form. There are a number of unusual restrictions if one wants to use the, though whether this is absolute, or merely a result of the paradigms currently used, is up for question.

Musts:

Channeling (Martial Style: Body) -2
Ritual (Martial Training) -2
Human Form. +1
Martial Form -1 (similar to Beast Form, but does not involve changing into an animal)

Minimum Refresh Cost: -4
High Concept that relates to being a supernatural Martial Artist.
Important Skills: Fists/Weapons, Discipline, Conviction, Lore, Endurance.

Options:
Strength, Speed, and Toughness powers (not Recovery), the Sight. Catches usually revolve around poisons and other types of attacks on the immune system. Human Form may be removed. Channeling may be upgraded to Evocation (with a few caveats), Refinement may be taken, assuming you have access to advanced training techniques (this usually requires an Aspect that aligns you with a certain group or access to training tomes)

Channeling: Supernatural Martial Arts is similar to traditional magic, but it is heavily focused on the body, as opposed to the environment. Blocks with Martial Style effects usually involve using your powers to interpose yourself in the way of the attack (usually sacrificing a Shift to allow you movement within the Zone, or more if outside the zone). Its elements are as such:
Martial Style Body (MSB): The Fundamental Martial Style. Invocations of Body center around enhancing the body, making you hit harder, dodge more effectively, move about the battlefield more effectively, etc. If you are a practitioner of Supernatural Martial Arts, you must take this as your Channeling power, and you must always have at least one Specialization in Martial Style Body.
Martial Style Soul (MSS): Effects that protect the mind from invasion, or imbuing a personally wielded item with one's essence, allowing you to enhance attacks with it. In some cases you can hurl spiritual energy at your opponents, though you have difficultly creating environmental effects that doesn't involve trashing the environment or creating blocks for others unless you physically interpose yourself in the way.
Martial Style Mind Over Matter (MSMOM): Arguably the most powerful of the techniques, but also the hardest to use. It basically functions like all the rest of the Elements combined (Earth, Fire, Wind, Water), but has several restrictions. First: you may not buy it before MSS. Second, your total Specializations bonuses in MSMOM may not exceed the total Specializations in MSB nor MSM (so you may not take a specialization in MSMOM unless you have taken a specialization in MSB and a specialization in MSS). Lastly, Focus items are harder to use. The total bonus to an individual set (Offensive Control, Offensive Power, Defensive Control, Defensive Power) may not exceed either of the Focus Item bonuses to any other set (so you cannot have a +1 bonus to Offensive Control MSMOM, unless you have at least a +1 bonus to Offensive Control MSS and at least a +1 bonus to Offensive Control MSB , nor can you have a +1 bonus to Defensive Power MSMOM, unless you have at least a +1 bonus to Defensive Power MSS and at least a +1 bonus to Defensive Power MSB

Ritual: Martial Training can be used to focus one's inner chi to enhance oneself. You can use it to place aspects on yourself to enhance your offensive and defensive capabilities, or that of a weapon wielded by you, although you can only place effects on yourself that are in line with your Martial Style abilities.

You may design personal Focus Items for the Martial Training and the various Martial Styles, but you may not make Enchanted Items or Potions, nor Focus Items that work for other people. One of the limitations of Supernatural Martial Arts is that it is intensely personal.

One thing to note is that when using certain Supernatural Martial Arts when killing people, you run the risk, but do not necessarily take Lawbreaker stunts. When using effects like Martial Style Body to enhance your fist to the hardness of rock and then bash someone's head in, you can arguably claim that it was your fist that splattered their head like a melon. Arguably.

The rules say that it changes your Aspects - but it does not specify that it has to change in a bad way.

Considering it uses terminology like "a new version that is twisted by the violation of that Law of Magic" and "replace another different aspect until all your character's aspects have been subverted by his descent into dark magic." (emphasis mine), I don't think it's supposed to imply sunshine and happiness (unless it's the "chuck you into the sun" sunshine and "happiness in mandatory, Citizen" happiness)

I'd say the people trampled to death are not Lawbreaker (the Wizard did not compel anyone to stampede, and the mortals of their own free will decided to panic as opposed to file out orderly or die in the fire [the latter is a jerk thing to say, but the panicked crowd still had free wil]), the others are.

You sir have been sigged.

Epic quote. Bravo.

Don't mess with the carebears.  They'll mindrape you.

Oooo, true, had forgotten that you keep swapping all your Aspects. I had assumed you only ever swapped one per Law you break.

Nope. So what happens when you've swapped out all your Aspects and you continue to Lawbreak? Do you swap them out for more intense Aspects?

So... what about sponsored magic?

The community is pretty much in agreement that sponsored magic is not affected by the laws of magic, so couldn't you kill a mortal with say... Summer magic and not lose a point of refresh?

I'm not of the opinion that sponsored magic allows you to bypass Lawbreaker. I think that's one of the inherent risks of taking sponsored magic. That your sponsor is a dick and tells you to murder people with your soul. That's why Hellfire is so "cheap". Because they want you to accrue as much debt as possible so when they try to corrupt you, you'll have harder time saying no.

That being said, Sponsored are able to use magic to murder without the Wardens hunting you down in the name of the Laws because Sponsored are not under White Council jurisdiction. As long as the Sponsored don't murder any White Council members, then the Wardens would have to use more extreme loopholes to track them down (if a string of refugees in a war devastated third world country, no one with any power is going to notice, but if several high-profile celebrities die in unusual circumstances, then the Wardens might be able to act because the Sponsored is risking involvement of Mortal authorities and no one wants that, though the Sponsored's patron will likely serve his head with a politely worded apology)