Tanks? My Chosen only has problems with healers out healing him and bloody ranged killing him before he gets close to them. Witch Hunters hit me for bugger all. A snare, AP drain attack and DoT followed by a knockback and they usually get the idea that trying to kill me without support is useless and wander off.
Aye, Tanks. Rank 20 atm mind you, so this might change later on, but typically I come out of Incognito, hit them with whatever DoT ability seems most appropriate at the time, make myself immune to snares, stack 3 Fervors, Burn Heretic, and Confess whenever they try to actually face me, or Torment if they try to run. Burn Heretic whenever I have enough accusations, morale abilities as appropriate, and ultimately the whole thing winds up me being grotesquely hurt and them being dead.
A lot of Destro players seem overly enamored of snares and roots, apparently not realizing that a lot of classes can slip them and make themselves immune for long enough to finish the fight. Nothing quite as fun as seeing the reaction of a Sorceress who just cast Ice Cage on me when I pop Sigil of Sigmar and keep right on coming.
Then again, I've also seen a lot of WH who stack too much into either BS or S at the expense of WS, which strikes me as foolish.
They are DoT'd from me and detaunted. Chii takes care of them before they can kill me
Two on one is another whole deal entirely. Like when Reya (Rhyas) and myself (Solomon) go out and hunt mages together. Sometimes they try that very thing, at which point I turn around and kill the WE while Reya takes care of the Magus/Sorceress. If I'm Incognito at the time, it's typically over quite quickly; if the WE is incognito she might get me, but she typically dies shortly after I do.
If they don't have backup, of course, it's over in about 5 seconds, lol.