As a tank, it’s normal to just run through whatever you know you can aggro and take so that you can keep mobs off your softer party members and you can maximize the area of effect because all the mobs the tank could possibly take on with a healer is going to be concentrated in one area. One thing you can do as a tank is know that monsters in dungeons don’t usually switch aggro so if they’re melee and a bit slow, you can kite them a bit so they don’t do as much damage to you and making it easier for your party’s healer. To make sure of this, you want to grab a war horn which, when activated, aggros every monster around you within a 40 yard radius. Again, if you have time warp in your party, you want to use it as early into the dungeon as possible so that the cooldown will be ready for the last room. Saving Time Warp into the middle of your challenge mode run might sound like a good idea but if it’s an absolute necessity to take down a boss in the middle of the run then you probably shouldn’t be trying for a challenge mode gold dungeon anyway.
There are some dungeons where you have to clear a certain amount of mobs to lure out the boss so if you have someone else in the party who has a war horn then make sure they also have misdirect so that you can quickly get the mob aggro instead of wasting seconds running around and even wasting potential damage. At those kinds of points where strong monsters need to be aggroed and taken out quickly, make sure you have abilities up because if you go in there without most of them (like Leeroy Jenkins) then you’re party will continue without a tank making the possibility of gold a lot harder. Everything has to be coordinated because getting that gold is no cake walk.
Some dungeons are convenient enough to have objects lying around that can add to the DPS be it barrels, siege weapons, etc. Take advantage of these because they most probably deal a lot more damage than your party can dish out in a certain amount of time. Of course, there are some party members who do more damage individually but having them save cooldowns as well as mana does pay off in the long run. Sometimes these items don’t only deal damage but add that oh so important extra crowd control so if given the chance, use what’s basically free damage for you and your party.
There are some boss abilities that are targeted and sometimes these abilities are aimed at one of your softer members so as a tank, you want to keep track as to which ability does what and who it may be heading to so you can use taunt to change their course and keep the damage off your party members.