it is understandable that you will not have all of these skills & passives opened as you level...these are the goals to be able to base Tank. Some skills can be swapped out for damage skills if you are soloing or leveling specific lines. Open your passives as you can. Get your undaunted line opened as soon as you can to get your inner Rage as it is a primary ranged taunt for tanking.
Templar tank is a very strong, yet underestimated tank in ESO. When built, a Templar tank is able to create large health damage shields, self healing, and maintenance. Whereas they may not bring as much regarding group buffs, their survivability and balance between magicka and stamina skills makes them great at self maintaining while tanking.
Templars can be a bit tricky to balance as they tend to be a resource hog on the magicka side but attributes and enchants can help with that to make them viable and enjoyable
for attributes I go for a balanced Health/Magicka build. The Templar can be very magic heavy on the skills so building this out still gives you above average health pools w/ food buff and a decent magicka pool. You can use a bit more stamina in this build, however it is much quicker to use heavy attacks with your front bar sword & Shield than swapping to your back bar to try to regain magicka. Note that even with 40 into health you can reach 50K health
Mundus stone: The Atronach or The Mage
Aedric Spear: Spear Wall
Dawn's Wrath: Prism | Illuminate | Restoring Spirit
Restoring Light: Mending | Sacred Ground
Heavy Armor: All
Sword and Shield: All
Destruction Staff: All
Fighter's Guild: intimidating | Banish |
Undaunted: Command | Mettle
There are many different trial builds when it comes to end game. At this time, this build is focused on normal trials and not as much Vet Hard Mode. I have posted what have felt is an optimal build for me and have completed majority of the trials with this build. There may be situations where you swap out set pieces and you should do that, but this post is an overall tank build that will handle many if not most situations.
Food: Bewitched Sugar Skills
Unassailable - 50
Ironclad - 50
Enduring Resolve - 50
Duelist's Rebuff - 50
Boundless Vitality - 50
Fortified - 50
Bloody Renewal- 50
Expert Evasion - 50
Use whatever you like in this tree