Stay close to your ADC to maximize your E skill's utility, and use your ultimate R as a counter-engage against enemy aggression.
Avoid initiating with R as it's easily dodged; instead, opt for tank/shield runes and mobility boots for flexible engagement and disengagement.
Despite her low solo queue performance, master her mechanics to compensate for weaknesses or consider attack speed/damage items situationally.
Stats
Q
W
E
R