Introduction:  Hey guys, Rathaszunn here Blaster for Aware Academy NA. This is my first guide, but with how much MWW ive played recently i figure it can be insightful.
Why not take E earlier? the Q helps poke more then E in lane, while raider is determined mainly by ult combo not the sustained AA.
my build
i like the pen on T3 Cosmic Staff, i dont rank it to 4 untill full build, same for doctor destiny T3 gets bonus dmg on its mod so i leave it at T3 like Cosmic. Then go into starheart makes her 10-15 minute ult nasty strong.Blue Scarab Next add the damage to AA's.
We move into situational items.Eclipso's is normally my 5th item i think it combos super strong with her ult and Q poke with the added tankiness to resist other MWW ults =)...
6th item is super situational if your getting bursted Ra's if there ADC/ batman is your only threat go Helm - more PD and MS and Arm, or neruons if your being dove by batman+shazam etc etc, may take some time to find your exact prefrences as these are mine.

Ability Uses
Passive try to keep stacks on players to keep the burst potential there
Q throw out on CD try to hit as many players as possible with as little minons as possible, takes time to learn the spread between the glaives
W- Use after they blow their gap closer to gain ground on them again to escape.
E- After ulting in fights throw it and blow people up
R- Stay safely positioned drop on as many enimies as possible.

Mods
Cosmic disentigration 2
Doctor Destiny's +22 PD
Blues Scarab 10+20% PD

Augments
+1.8 AD +1.5% Crit
.53PD  per level+ power lifesteal
1.8AD +1.4% AS
3.16PD + 1% power lifesteal