Gear:

5 Pieces Spellpower Cure
5 Pieces Mending/Worm/Prayer Shawl

Head, Chest and Legs infused, rest divines.

1 Masters Restoration Staff - preferably powered, precise or infused
1 Masters Lightning Staff - Charged

Buff Food: Witchmothers Potent Brew

Mundus: Mage

Skill Explanation:
Energy Orb: Great for keeping up spellpower cure, healing a target on synergy and restoring resources!
Inner Light: Increases your resources by 7% (almost as much as Northern Storm) and grants Major Prophecy, increasing the chance of critical healing and critical damage). Can be swapped out for anything if needed, but you will lose about 3k magicka when bar swapping.
Elemental Blockade: Sets the enemy off balance, increasing the damage they take by from players with 75 points in the ritual mundus by 10%.
Deceptive Predator: Mainly slotted for the regeneration passive. Grants 5% dodge chance, speed buff and 30% increase in stamina regeneration.
Enchanted Growth: Strong cone burstheal. Also increases magicka and stamina regeneration.
Aggressive Warhorn: Grants 10% on all resources for 12 players as well as a damage increase.

Quick Siphon: Minor life steal. Healing gets easier, when the Damage Dealers heal themselves while attacking.
Healing Springs: Main AOE-heal for tough situation.
Budding Seeds: Ridicously strong burst-aoe heal (35k at times, usefull for bring up a damaged tank instantly). Keep it up 100% of the time so you have a heal ready when needed.
Blue Betty: Major Sorcery and free Magicka back. Additionally heals when it dies (or you recast it while its still active) and removes a negative effect.
Combat Prayer: Strong AOE-heal and grants additional 8% damage.
Northern Storm: Mainly used for the 8% more magicka and can be used as damage mitigation.