EDIT: For all the non-believers, here is proof you cannot deny.
https://www.youtube.com/watch?v=M0ReeteKsvg
Now that your silly comments have been proven wrong, time for you to try and attack something else I said. I'll be ready to make more videos.
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Earlier today I was in the group finder searching for a veteran Banished Cells group to get the achievement I was missing.
After a few minutes, we had 2x DPS, 1x Healer and no tank. Since nobody joined as the 4th slot after few minutes, we decided to just start the dungeon and see if we could manage it with 3. We cleared it super easily, with only 3 people and no tank. We only wiped once on the final boss because one of us wasn't sure how to cleanse the debuff.
Because of this success, we agreed to find a third DPS to fill the 4th slot for the Spindleclutch and Fungal Grotto vet dungeons. Those runs went so much better than any other runs I've been in. We cleared both dungeons very fast, and killed the gargoyle in Spindleclutch in far less time than we would've done with a tank instead of a third DPS. We collected undaunted achievements on the first try of the final bosses. Only me and one other person in the group knew the mechanics of the bosses, and telling the other 2 members was more than enough to clear it first try.
There was never a point in any of the 3 dungeons where we felt we could use a tank. Kiting bosses while doing high DPS is far more valuable than being a low DPS meat shield. Even a healer can keep up in DPS with a tank, and heals are far more useful.
Things to note that are not in a tank's favour in the first 3 dungeons:Fungal Grotto
The Daedric spider boss is immune to taunts and doesn't do enough damage for it to even matter, meaning a tank is just a low DPS person who is tagging along.
The second last boss cannot be fought in melee range, making tanking options limited, but again, no need for a tank as the tactic is to run away from him when you have aggro.
The final boss often cannot be fought in melee range as she stands on her dark circle AoE a lot. Ranged tanking is viable, but it's hardly worth the tiny amount of defensive bonuses given. A third dps is still a better option here.
Spindleclutch
The Gargoyle in Spindleclutch is arguably the hardest boss in the first 3 veteran dungeons, and having a tank there instead of a third DPS lowers your chances of killing it on time (the boss is a DPS race) it's easier for one of the DPS characters (ranged preferably) to use the undaunted ranged taunt and then block power attacks or stealth out of them, or buff their armour with one of the many skills available.
Praxin sends 3 claws out from under him making it harder for melee tanks to dodge them. He also casts the ring on a random player, if it's the melee tank, he can often get stuck on the stairs and die by touching the wall of the ring.
The second last boss has a very very powerful heavy attack and it's a great idea to kite him , having no tank at all.
Banished Cells
The final boss teleports around a lot, making melee tanks, and well any melee class less effective.
The first boss sends fire out from under his feet, making it very hard for melee tanks to dodge.
The giant Daedroth can be kited easy, and it's much faster to have a third dps in there. No need for any form of tank or even any defensive utility.
Now I'm not a tank player, but judging from the time it takes to find a tank for any VR dungeon compared to DPS + healer recruitment times it would seem people dislike tanking. With good reason too.
I like the way this game really doesn't put every player's character into just one role. I personally like DPS with defensive utility. (I soloed a few veteran dungeon bosses with stealth armor buff and lifesteal utility) I've seen DKs solo veteran dungeon bosses with a bow and very little effort in whatever it is they do.
But really, in every situation a straight up tank player slows your group down. A DPS with some defensive utility or synergy oppertunities (Bone shield is EPIC) and a healer who also has defensive utility or dps skills is far more effective for everything than having a tank.