Guild Wars 2

1) Arrow carts must require a firing path to the target, like engineer grenades, OR direct line of sight to the targeted ground, like Ranger abilities.

This fixes the zoom exploit.

2) The first new WXP ability in the oil tree should be “Oil Bucket”. It lets you go up to a functional burning oil pot and obtain your own 1-shot pot of oil (30 second duration, 1 use). Like the boiling oil, it has a small horizontal range but a large vertical range — you are meant to drop it over the sides of walls. This is to make up for the fact that arrow carts will no longer be able to defend against things up against the wall.

3) Siege Might will do the following:
1 point – +1% siege damage
2 points – +2% siege damage (total)
3 points – Protection while using siege
4 points – +5% siege damage (total)
5 points – Stability while using siege

That will make it waaay more useful and tempting than it is right now.