So, I recently decided to give tanking a whirl, after many years of exclusively playing healers and damage dealers in MMOs. After doing a bit of research, I kitted out my Argonian with some Plague Doctor and Ebon gear and mismatched monster sets (infused + tri-stat glyphs on big pieces, sturdy + health glyphs on small pieces, block cost reduction glyphs on jewelry) and decided to start out slow with some random normals to get the hang of it. I can't give my full slate of character stats, as I'm visiting family for Christmas and don't have access to my PS4, but if I remember correctly, I had around 35-40k health, 20k stamina, and 20-22k magicka (buffed with tri-stat food). I can't remember what my magicka recovery looked like, but I know it wasn't great. I didn't bother much with stam recovery for obvious reasons. Also, I realize Ebon/PD is overkill for random normals, but I wanted to have a big health pool to be on the safe side while learning the ropes.
Well. When I wasn't running out of stamina from taunting/debuffing mobs and also trying to contribute a bit of damage (using stamina-based DK/1H+S skills + caltrops), I was running out of magicka from trying to chain mobs and apply talons... This was surprising to me, as I've always read that DKs (and Argonian DKs in particular) are great with sustain.
What am I doing wrong? I've NEVER had sustain issues before with any of my damage dealers or my healer. I have lots of CP points in block cost reduction and heavy attack stamina return, but I'm still running on empty on stamina most of the time. I can't spam shields either for the DK passive stamina return, as I need all the magicka I can get for chains/talons. In frustration, I re-morphed a few skills and tried out a light armour-based Fortified Brass build with only two stamina-based skills on my bars (puncture and heroic slash), and that didn't help much either (though it did fix some of my magicka sustain issues ever so slightly). All I can think is that I'm maybe trying to do too much damage or trying to chain too many mobs too quickly...
Tips very much appreciated. I'm THIS close to purchasing a race change token and turning it into a dedicated damage dealer, or turning it back into a PVP tank (which I tried previously with way more success, even if it wasn't much fun).