MRW the enemy builds armour against my WW....
and only armour. https://media0.giphy.com/media/Vg0JstydL8HCg/200.gif#1
Seriously:
P: magic dmg
Q: magic dmg
R: magic dmg (wtf?)
: magic dmg
sometimes
other times 
: magic dmg
sometimes 
: magic dmg
Feel like not enough people realise that a ww's damage is hybrid and don't itemise both mr and armour.