Food Used : Orzargas Red Frothgar (increase max health 5000 and Magicka recovery by 457 for 2 hours)
Pots : Essence Of Spell Power ( I use this mainly for the restore 7582 Magica immediately) , Tri Pots , Essense of Health

Gear

Main Hand : Restoration Staff Of Endurance (gold, CP 160 , Life Drain Enchant , Defending )
Backup : Bow (explained further down)
Head : Engine Gaurdian ( gold, CP 160, Heavy, Max Health enchant, Infused)
Chest: Magnus Cuirass ( gold, CP 160, Heavy, Max Magic enchant, Reinforced)
Shoulders: Engine Gaurdian (purple, CP 160, Light, Max Magic enchant, Infused)
Waist : Girdle of the Seducer ( gold, CP 160, Heavy, Max Magic enchant, Impen)
Gloves : Magnus Gloves ( gold, CP 160, Light, Max Magic enchant, Divines)
Legs : Magnus Greaves (gold, CP 160, Heavy, Max Magic enchant, Divines)
Feet : Sabatons of the Seducer (gold, CP 160, Multi Effect Enchat , Infused)
Necklace : Necklace of Willpower (purple, CP 160, Magic Recovery enchant, Healthy)
Ring 1 : Ring of Willpower (purple, cp 160, Magic Recovery, Healthy)
Ring 2 : Ring of Endurance (purple, cp 160, Magic Recovery, Healthy)

I use this build for PvP Purposes and while I can't do any damage (im usually running with a group of 15-20, i depend on them to take down any enemy players while i heal) , I can survive 3-5 people on me at once due to my health being so high and my resists being almost 30k unbuffed (and then walk them back to the group who can take them down if need be). My health is around 33k , Magic 24k, and recovery for magic about 3000 (the essense of spell power pots take care of that, which also increases your magic recovery by 20%) . My main focus is to keep everyone else alive and with this build if people do happen to begin dropping, I can survive hits while getting players back up. I also use this build for PvE (trials, dungeons) . As long as the others have decent DPS , the only thing i focus on is keeping them alive.

My second bar is mainly for PvP . You can replace the bow with whatever. The bow itself i use just to be able to run faster when I switch to that bar. The second bar I keep mostly support options on . If a player needs stamina , i have shards ready to go to help them regen. Or if a player needs rapids, I can easily hit that so it doesnt take up a spot on their bar.

This build will basically make you a tanky healer. Again, you wont do anything for damage, but you can survive until someone gets there who can (not to mention the AP you get for healing is amazing..just saying) .