As quinn, Purchasing more items will increase her damage output significantly. She should try to abuse her laner early on with her basic abilities.

Her W should provide her with a lot of vision while roaming around in unwarded territory. The attack speed increase is very potent, as well.

Her Q will come in very handy in fights that occur in tight spaces. She can quite possibly land a five-man blind, which will be huge for her team.
 As quinn, She should try to abuse her lantern early with her basic abilities. Her W should provide her with a lot of vision while wandering around in an unrewarded territory. The increase in attack speed is very powerful, so. Her Q will come in very practical combats that occur in tight spaces. She can most likely land a blind five-men, which will be huge for her team.