nami slows opponents down what allows her to take heal and the adc ignite.
if you play her well and defending in the right sitiuations your opponent shouldnt be able to kill her.(guardian angel^^)
remember always slow down oponents and stay behind your allieds to bounce over them to get some assists. i had scores like: 0/0/16- 6/2/21- 2/1/20 with this build hope you enjoy this guide.
thx for watching.

nami is a very manahungry supp so she often goes back

the runes are usefull if you get hit by ad carry or supp

the masterie are for the runes in combination wth nami very important especially the mana regeneration (to keep her on lane and alive).

some good items for defense and auras for your ad carry. and a manamanipulator will help you to stay at the fight longer and gives allieds mana regen too(yey possitiv things.

the heal(bounce)is important and the ulti they have a high chance to hit opponents and slow them down. i prefer to skill w q e so you can heal prison and let your own adc slow the opponent down.

passive:allieds hit by namis skills have increased movement speen

water prison:pus things it hits into the air so that they cant do somthing during it.
bounce: on allied is double heal/on opponent double dmg
buff: increase attack speed ap is used too auto attck next 4 hits and opponents that got hit are slowed dowm.

wave: a pretty nice wave doesnt deal that much dmg but slows down all opponents it hits.

no need to farm

the teamwork is very high cause of the big wave and the bounce doesnt hit same target again.

a lil bit squishy at beginn (beware blitzcranks pull).

mid and end game just is behind her allieds to support them and is o target for opponents an if you have an angelic guardian only noobs would attck you.
and if you see you lose teamfight you can run (torpedofish) and dont let it come to an ace the opponent wishes for.

this build is very good for ranked players
if you play arefully
and if you have a ad carry with nice dmg that is aggro it is cuz of the boune sure first blood for yout carry.
(if no idiot dives top with lvl 1.)

at beginn squishy but a good supp with ice dmg and heal in same skill to letz opponents be afraid so your cry can farm.
during the game nami becomes less and less the target of your opponents and turns more and more unkillable if she is behind her allieds.