A breath template covers 12 spaces and currently is one of the wierdest weapons when it comes to LoS rules in the game. Since Shadowcloak exists to "interfere" with it's effectiveness it now finally appears to have been given it's first weakness, other than it's limited range. As long as one space started adjacent to the figure using a breath attack, and each space affected carried on in a "legal" line of site, this weapon could be far more useful in terms of guaranteed 12 space range (barring miss) but restricting it's AoE to a straight line reducing it's effectiveness against groups when not spread out, but giving a kind of "focused"attack that can still be "spread out" to the amount of spaces left available after reaching range (attacking figures choice) like a fireball blast or long range short spread. It would also take away the "shoot around corners" ability it currently uses which I'm sure gets questioned as to it's "strangeness" by more than just my group (though this did make the breath far more effective and far less limited). While it seems like "Blast" this way it really isn't. Rulings could be included to make the flame always "flare" out in a pyramid when the attacker has reached the desired range, but always away from the origin of the attacker (for example, couldn't send it six straight forward, then six diagonally backwards, and spaces couldn't be "doubled" up)
Just a random idea, probably a bad one, if I was making alterations to the game for fun (obviously taking it far from it's current play style), I'd likely change it to something like this, with very little tweaking it would work better for more of a "dungeon" crawl version using Descent.