Riven + Orianna support
That shit is broke as crap

-
Windspeaker keystone (10% shield strength)
-
or
for movement speed or slows -
another 10% shield strength, 20-35% attack speed and some on hit damage -
20% shielding power and cc cleanse -
another shield that benefits from 40% shield strength
Lethality
god mode. She ults, i use
+ w (movement speed bonus), i stack the shields, cleanse her if need be, then i cc chain ultimate. The amount of CDR i get from these items also helps me refresh the shield relatively fast, as well as my w.