Heals and shields are 5% stronger and increased by an additional 10% on targets below 40% health.
Offense
+5 AD or 9 AP
Flex
+5 AD or 9 AP
Defense
+6 Armor
WhySummon Aery
Aery allows Nami is apply a generous shield and heal her teammate with [W] during trades/fights allowing your teammate to stay healthy.
WhyManaflow Band
Nami's [W] has a high base mana cost, often starving her of mana if trading a lot. If you're casting [W] when Manaflow Band is off cooldown, your lane sustain will be massive.
WhyTranscendence
Nami offers an incredibly amount of CC and heals in teamfight where you are able to get multiple casts off thanks to CDR.
WhyScorch
Scorch allows you take take very aggressive trades early in lane and come out ahead thanks to your [W] healing and Cheap Shot damage.
WhyBone Plating
Bone Plating allows you to trade aggressively in lane thanks to your ability to sustain off any incomeing damage with [W].
WhyRevitalize
Revitalize synergizes well with Nami's high base healing on [W] as well as the extra healing from Font of Life and shielding from Aery.