I'm already using Earthgore on my warden as I back-bar Jorvuld's, but I'm looking forward to trying something like Master Architect+Jorvuld's+Bloodspawn when the new update drops. For my templar, it would depend on the fight/group; I like Earthgore, Troll King, Lord Warden, Sentinel, and Bloodspawn, and there are cases where each could be useful.
Troll King - I feel it is like "jack of all trades" in ESO
1 item: Adds 2% Healing Done
2 items: When you heal a friendly target, if they are still below 50% Health, their Health Recovery is increased by 1548 for 10 seconds.
15480/2 = 7740 HP (50%)
other option 1/1
1. 1096 Max Magica / 1096 Max Stamina (Domihaus Set)
2. 129 Magica Recovery or 1096 Max Magicka or 129 Weapon and Spell Damage