Nami is the new champion of Riot's,
so I'll make this build as me playing with her (notice that I'm still not quite used to the new system purchases and new items, also say that this was done with the Google Translator due to not having much time to be the computer).

I made this build considering what I saw in the video of Riot's (presented in order of build) so I'll try to explain what pus difrente the build of Riot's (which in this they did not put the items we should buy) anything constructive feedback otherwise I'll just ignore them and respond the same coin;)!

I remember the case of Runes advised that Riot's lead Runes of:
Attack Damage Mark's (x9) - Red ones
Armor Seals (x9) - Yellow ones
Magis Resist Glyphs (x9) - Blue Ones
Generating Quintessences Gold (x3) - Gold ones
but,
I never use runes of attack damage in any suport because in my case was enough ks and on top with Nami attack damage meter does not give it to me, do not know which is your case but in my methyl of the Runes:
Mark's cooldown and Health (x4 and x5) - Red ones
Armor Seals (x9) - Yellow ones
Magis Resist Glyphs (x9) - Blue Ones
Movement Speed ​​Quintence (x3) - Gold one
I suport the beginning of a game have to have more speed at least as far as my AD Cary meter so Quintence Gold Generating not only on top of and Nami to have to have the same speed that opponents to get to the stun and give kills to my AD Cary.

In Masteries they are relatively similar changes just one thing or another and then will not see the end of the video.

In items like Riot's didn't put nenhums iitems thought of my own in order to help my AD Cary as Zeke's Herald or the new item's Mikael Crucibel.

In Skills I tried to do as Riot's said giving to the last que Q skill (the stunt one).

Flash and Heal are the best ones but if u want u can have exhaust or Clarity

Nami channels the primal energies of the ocean, harnessing its mystical restorative properties and commanding the raw power of the tides themselves. Though many doubted her, Nami had the bravery and determination to take on a dangerous quest when no one else would. Now her people believe she is the Tidecaller, a chosen one destined to complete a quest essential to the survival of her entire race.
The Tidecaller's sacred duty is to acquire a moonstone, a powerful object found only in the towering reaches of the surface world. Her people, the Marai, rely on the moonstone's light to ward off the terrors of the depths. However, the stone's power lasts only one hundred years. Before its light fades, the Tidecaller must journey into the Great Deep, retrieve an abyssal pearl, and carry it to the surface. There, on the night of the winter solstice of the hundredth year, the Tidecaller makes a ceremonial exchange with a landwalker bearing a moonstone. By trading the pearl for the moonstone, the Tidecaller ensures the survival of the Marai for another century.
However, in Nami's time, as the hundred years drew to a close, no Tidecaller had been found. Without a chosen one to complete the quest, her people would face disaster, but the Marai waited in faith that the Tidecaller would appear. Nami refused to sit idle, insisting that without a Tidecaller to save them, someone had to act. Bravely, she decided to begin the quest herself and ventured alone into the dangerous depths. None expected her to survive, but after six days of battles with untold horrors, Nami returned with the pearl in hand. The Marai hailed her as the new Tidecaller. All that remained was for Nami to journey to the surface and complete the exchange.

When Nami arrived at the surface, however, she found only an empty shore. She waited for days in a mystic cove, unsure of what to do. In all the legends of the Tidecallers, the bearer of the moonstone had never failed to arrive. Nami faced a choice. She knew the surface world only through tale and rumor, but the survival of the Marai depended upon her. Summoning the tide to bear her ashore, Nami began her search for the moonstone and became the first of her kind to explore the world above the ocean. She left her home behind, and vowed not to return until she had completed the Tidecaller's quest.

"I am the tide, and I cannot be turned."
―Nami

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This is the end of my build for Nami.
Rate and Comments psl
;)