[Atlas]

I'd say give it a lot more length and duration. That would be useful since it's basically just a super-wall that takes more mana to cast.

On a side note, I think it would be awesome if walls decayed from the edges inward instead of randomly. That would be useful for hunting since you could trap monsters longer and you wouldn't randomly have an important block decay on you with no warning.

+1 ... This hit the nail on the head for me as well as the suggestion to cast spells through it, that'd be sweet as well / alternatively