I'm a fairly new player to this game, but I understand pvp way more than pve. However I did want to get into pve a bit more and decided to take a shot at making a build for it.
I decided to make it a warden, since it's my favorite class, and use ice staves because frankly I'm more of a magic fan than stamina fan despite reading that ice staves aren't as good as S&b. I (think) I have come up with a decent build from reading some expectations of a tank.
https://en.uesp.net/wiki/Special:EsoBuildData?id=92795
My logic here is that, I hit 37k hp (with food and buffed up) which allows me to put 64 points into magicka. I also hit resistance cap on spell res and get pretty close to phys res cap, but on top of that I have the nord passive for 6% damage mitigation and 8% from minor protection off of ice fortress plus the undeath passive. You also will have major protection (30%) fairly often on trash pulls due to crystalline shield giving major heroism + bloodspawn, making you extremely tanky and helping your group easily shrug off damage from pulls with heavy damage since the major protection is an aoe. With the charged backbar blockade of frost you hold trash in place very easily for the dps to burn down the trash quickly.
In murkmire warden tanks/healers are going to be the only reliable source of minor toughness since warhorn is getting nerfed and to combat the relatively low (at least by my view point as a pvp player) mag recov on the build you're looking at crys shield, HA passive, ele drain, deep thoughts, and blue betty (which is getting buffed by 60% or so in murkmire) and your stam should be fine since you're only using it to sprint, breakfree and dodge roll and it's sitting at a solid 18.9k. (This is why I chose the Lord mundus instead of atronach or serpent)
Thanks for reading, if there's anything that can be improved on (other than the obvious of that S&B etc would probably be more of a meta choice because I knew that going into this) then feel free to let me know, thanks : )