increase the movespeed time amount bonus from 1.5sec to 1.5/3/4.5/6, so its active duration is the same as her E.
an on her E what if it went to both her and target ally (if targeted ally), but if she targeted herself it gives double dmg. and shouldn't its base cooldown be 6 seconds. and each empowered atk slows for 2 seconds instead of 1
Bronze 6 Yasuo1 votesActually nami needs nerfs
thaBeast1 votesyea nami needs buffs but i feel you over buffed her tho
VICKLIUS1 voteshow so? all I suggested was increase the speed time so that it is same duration as her E, let her have E do as much as teemo's E an keep it almost always up like teemo's E but w/ mana cost an still technically half teemo's E dmg since it going on a champ that actually aa where as nami shouldn't normally
thaBeast1 votescause you can constantly e it also buffs your basic attacks and causes a slow and if you get a couple mana items along with manaflow band its like a over buffed extra passive
Eat Rammus Soup1 votesI get the feeling you want to make 
viable on Nami.
6 seconds of Movement Speed buff is overwhelming, considering ALL her abilities buff Ally Move Speed.
Dropping the CD of her E to 6 seconds would allow her to spam E for a constant Move Speed enhancement and with Lich Bane she would get another 8% on top of that and a nice fat bonus to her already "empowered" attacks.
On another note- Why is it that Cass doesn't wear boots- and Nami does, even though Nami is the one who says "Feet are strange."