If you haven’t seen this skill in action, and I suspect many haven’t since engineers never use it, I will explain how it works to you.
You press the 0 key and use your long cooldown elite skill, Mortar, which places a mortar tube at your feet. This object is immovable and unrepairable. While manning it, you cannot move or use any other skill such as heals, utility skills, or toolbelt skills. The first time you man the tube, you will be immediately struck by how short the range is. It has a range of just 1400. This can be buffed to 1500 with the trait “Rifled Turret Barrels” but the trait “Elite Supplies” has no effect despite saying that it increases the range of Mortar in the tooltip. So the highest range you can achieve with this ability is 1500, which is also the range at which you can throw grenades and rangers can shoot longbows. Of course grenade engineers and longbow rangers can move while doing this and they don’t have to use an elite skill to match the range of your mortar. Other classes that don’t have weapons with range of 1500 only have to dodge roll towards you and they are close enough to hit you and your tube.
The first time an enemy attacks your tube you will be shocked at how quickly it dies. 3 attacks from a Ranger’s longbow are enough to take it out.
For an elite skill that immobilizes you, has short range and is easily destroyed by a handful of basic attacks, you would expect the damage to be great. But sadly this is not the case either. The damage of the abilities would be significant if the range was doubled. But when you consider that the average mortar tube lasts less than 10 seconds before it is destroyed or you are killed, you only have time for a few shots. When you shoot, a giant red circle appears on the ground and your enemies scatter, often dodge rolling towards you which not only nullifies the damage but puts them close enough to shoot your tube. Dodge rolling isn’t even necessary however because the travel time of the mortar rounds is ridiculously slow. Enemies that are crippled can easily walk out of the AoE. If you are lucky enough to land a shot that does damage, congratulations! You have taken about 5-10% of the average enemies hp with the #1 skill, and about 15% with the number 5 skill.
As far as traits go, the mortar traits are in the least convenient location, the inventions tree. If you want to get the most out of the 2-3 rounds you can launch before your tube is destroyed or you are killed, you want to build for direct damage glass cannon. Unfortunately for you, the important mortar traits are in the 2nd and 3rd tier of a purely defensive line which gives you toughness and healing. At this point, the trait Elite Supplies doesn’t even work on mortar, and Rifled Turret Barrels only increases the range from 1400-1500. So since the traits are so awful you are probably better off skipping them and spending all your points in explosives, firearms, or tools for bigger damage.
There are a few reasons, aside from how awful the skill is, why engineers don’t use mortar. One is that the grenade kit has the same range as mortar, does better damage, and allows you to move while attacking. The other is that by taking mortar you aren’t taking Supply Drop, which is amazing in many ways, or Elixir X which is engineers only source of stability. So the opportunity cost of taking Mortar is very high.
Mortar needs immediate attention, Anet. Please give substantial buffs to the range or just remove the skill and give us something we can use, like a suit of power armor or a robotic pet which I see requested frequently in this forum.
EDIT: Thanks to DootmasterX and Karast for helping formulate an idea that seems like a winner. Instead of being a destructable object that is placed and can never be moved, make Mortar in to an actual kit that behaves the same as any other kit except you are immobile while using it. With this setup it would only need minor range buffs and maybe a bit more damage on #1 to be competitive with Grenade Kit and Supply Drop. But heck, I would take a Mortar Kit as is and let the devs fine tune the range and damage later. This would also make it viable in PvE, maybe even sPvP. I don’t see how this would take too much reprogramming from the devs that are surely very busy, so it seems a realistic request on that front as well. Whaddya guys think?
(edited by Zandur.5012)