[@xodus] Right, I think you mean for Chronos?  And alright, I get it.  Still, teleportation is a standard skill, and it's going to have a standard method.  Going through shadows or mirrors only has implications if you assume there is a realm in between, instead of saying it functions like a portal from Portal.  The former I could see as level two, the latter, however, should still be three.  Electrical travel would be cool, and that'd work for long distances.  Definitely level 2, though.  However I recall you saying that there's long-distance teleportation, such as however we get to a mission location.  Easy teleportation is line-of-sight only.

I'm not entirely clear how level two works.  Also some stuff has come up with elaborate and elegant sigils.  I'd think neatness and complexity add to power and/or accuracy, possibly both.  This came up elsewhere; I forget if I mentioned it here but it's not in the last two pages so if I did oh well.  ^.^;;  There's also been talk of sigil traps -- if you prepare a sigil but leave part unfinished, can you have something trigger it (say a much smaller cast that detects certain conditions, or a tripwire that lowers the final piece into place, or something like that)?  I'd guess that the sanity drain comes when creating it, not when it goes into effect.  Does there need to be active intent behind the completion, or can it be triggered by the unwary with the caster nowhere nearby?  Delayed-result casts might be interesting to use as well.

Good luck on your exam!  Looking forward to your post.