Suitable Build for Nana

Support / Mage

Nana is a support/mage. Her specialty is Poke/Guard. This means that she can defend the turrets very well and can do damage in a team fight from a distance. 

Her main strategy is to use her skills as much as possible, thus reducing her mana very quickly.

Skills, Basic Attack and Durable

First thing that is most crucial is her builds. Below is an example build which is divided into Skills, Basic Attack and Durable. The difference is that skills is used when you tend to use your first skill more than your basic attack. 

Basic attack build is when pushing is more your thing rather than kills. Last one is just if you prefer more mana than mana regen.

 Durable 

is also if you would like to be safe from CCs and Stuns. Emblems may be important. You can use Magic Emblem and select mana regen.

There is also an alternate build for skills. This is for more damage and less lifesteal and slowing enemies. 

If you don't really like my builds. you can create your own with the equipment below:

Attack

Rose Gold Meteor Shield for Low HP

Hunter Strike Increase Mobility (never tested)

Blade of Heptaseas (never tested)

Magic

Genius Wand Increase Damage

Lightning Truncheon Increase skill damage

Fleeting Time Decrease CD

Blood Wings More HP and Mana

Clock of Destiny More HP and Mana (not as much)

Calamity Reaper Basic attack has more damage

Glowing Wand Continuous damage with skills

Ice Queen Wand Slow enemies with skills

Concentrated Energy Life Steal

Holy Crystal Percentile Magic Power

Divine Glaive Higher Penetration

Feather of Heaven Quicker attack speed with more magic damage. Useful for late game.

Enchanted Talisman Regenerates max mana in 10 sec

Defense

Twilight Armour Prevent from burst damage

Immortality Insurance

Athena's Shield Shield from Magic Damage

Oracle Increase regen effect

Guardian Helmet Recover HP after fighting

Thunder Belt (never tested)

Queen's Wings Reduce damage done

Movement

Demon Shoes Mana Regen

Rapid Boots Mobility?

Swift Boots Attack Speed

Arcane Boots Magic Penetration

Magic Shoes Reduce CD

Tough Boots Prevent Stun

Roam

Awe Mask Stun with Basic Atk

Courage Mask Team Fight

Shadow Mask Getaway ( useful with Flicker or Sprint)

Spells

Next thing would be her spells. She can use a variety of spells. For her skills build, Revitalise will be needed if mana or HP is short of. Revitalise can also help in team fights to have an advantage over the opponents. For basic attack, maybe inspire or aegis. For durable, flicker would be useful when in sticky situations.

If not, spells that can be use are:

Inspire Push

Sprint Nana may need extra mobility

Revitalise Team fight

Aegis Team fight

Flameshot Poking

Flicker Mobility

Arrival Mobility

Lastly, that would be where she is needed. Her most useful thing would be to irritate opponent junglers. Junglers are usually weak in the early stages, thus preventing them from getting strong too fast. Nana can also defend very well, thus taking care of Mid Lane so that junglers can be guaranteed safety. 

Mobile phone...

When playing: try to use a mobile phone with better specs and a strong connection :)

Thanks for reading and hope Nana can be great use to you!