that won't be possible with how classes are currently. it's not that easy to change mechanics. :/ i'm not sure what sort of delusions you're having. it will take a minimum of months to do what you request. it's just not going to happen right now. we have two tanks. WAR and PLD. WAR specializes in trash mobs/AoE PLD specializes in heavy hitting big stuff.
i never said it would be. building it from the GLA will require it to be too defensive. because, aside from it's WSs, all of it's abilities are defensive. you cannot reliably build a DD from GLA because half of it's abilities are defensive in nature. The other half are WSs.
that's it. period. no ifs ands or buts. GLA is defensive in nature. anything spawning from it will be the same. the suggestions are made are far more viable than yours because it changes defensive abilities into offensive abilities based on the presence or absence of a shield. However I do not recommend this path. my recommendation is to build DRK from MRD.
so to make a DD class you want to make it half your abilities do absolutely nothing for you. all of it's offense now comes from sub class abilities and it's drain abilities. brilliant plan.
why build it from GLA at all? why not MRD? every defensive ability from MRD allows you to use a 2handed weapon. and MRD has a lot of offensive abilities that will benefit DRK.
please enlighten me as to why GLA makes more sense for DRK than MRD.
you missed the main point of my post. GLA has nothing for DDs. nothing. at all. none of its abilities are good for a pure DD class. DRK is a pure DD class. without a major change to it's abilities then you will not be able to reliably build a DD class from GLA.
What actually makes sense:
build DRK from MRD.
What does not make sense:
Make a new mechanic for only one class to compensate for a lack of offensive abilities. (IE: graze)
what you're proposing is essentially a combination of parry and block. why in the world would we not just make it parry?
contrary to your belief, introducing this would make DRK a tank.
why? because then you can parry AND graze. a GLA with foresight now has more defensive abilities than PLD, because you cannot parry with a shield. and because you have access to sentinel and damage=hate.
so no. just no. it's not a good idea. but it is a valiant effort.
i wasn't aware you could change armor/rings/shields while in combat. I was near positive you could not. I don't really see the merit in this. if you're tanking you want your shield up at all times. if you're DDing shield does nothing for you, and you'd have to DD with a 1 handed sword instead of the proposed Gswd. you'd be gimping damage potential for a slight increase in utility. it doesn't make a lot of sense to me unless your'e solo. in which case who cares? PvP maybe but:
Either way this was not my actual recomendation, it was just tossing ideas that would be feasible if DRK built from GLA.
I still think it should build from MRD.
MRD => WAR = tank
MRD => DRK = DD
GLA => PLD = tank
GLA => RDM = Support/utility.
These kinds of paths make sense within the realm of current skill sets.