buy first 2 first Bullet armor here only if really needed early, but you buy escalating later anyways If lane is bad you can skip quicksilver for lifesteal
I only play Ivy and this is what I do for a gun build. Sorta negates her abilites but its a lot of fun -warning- weak early game, just play a bit more reserved Constantly making little changes. Pretty standard gameplay. Make sure you spam your 2, always have it up while blastin. Ult in to a fight, silence, win.