Crafty Alfiq
LEVEL 50 - CP 160
ESO-Hub.com
Type Overland
ArmorSet bonus
(2 items) Adds 1096 Maximum Magicka
(3 items) Adds 1096 Maximum Magicka
(4 items) Adds 1096 Maximum Magicka
(5 items) Adds 2550 Maximum Magicka


Necropotence
LEVEL 50 - CP 160
ESO-Hub.com
Type Overland
ArmorSet bonus
(2 items) Adds 1096 Maximum Magicka
(3 items) Adds 1096 Maximum Magicka
(4 items) Adds 1096 Maximum Magicka
(5 items) While you have a pet active, your Max Magicka is increased by 3132.


for the benefit of those not remembering all the sets stats in game.

Also, somewhat unrelated, there are sets from diff alliance that give penetration benefits but just go by different names. So it's a thing that happens that sets very similar have same benefit and diff names.

As far as soloing goes, there are diff ways to solo and at diff levels. new players can benefit a lot form one of the aformentioned penetration sets or possibly vamps kiss that retores health. Then ofc there the awesome orders wrath that gives high crit. A high crit set and a high pen set make a great combo for new players. For more experienced players theres a ton more options byut OW is hard to beat for being 3 traits.

Order's Wrath
LEVEL 50 - CP 160
ESO-Hub.com
Type Craftable
ArmorSet bonus
(2 items) Adds 657 Critical Chance
(3 items) Adds 129 Weapon and Spell Damage
(4 items) Adds 657 Critical Chance
(5 items) Adds 943 Critical Chance, Increases your Critical Damage and Critical Healing by 8%.


and for a little of everything there's new moon acolyte which if you wanted to use with a max magica set might prove useful for soloing

New Moon Acolyte
LEVEL 50 - CP 160
ESO-Hub.com
Type Craftable
ArmorSet bonus
(2 items) Adds 657 Critical Chance
(3 items) Adds 129 Weapon and Spell Damage
(4 items) Adds 1487 Offensive Penetration
(5 items) Adds 401 Weapon and Spell Damage. Increases the cost of your active abilities by 5%.