We are going to build a wall, and we are going to make bottom lane pay for it!
I like Taliyah now. She's a shitty mage, but a pretty solid support.
I think that fits with her, being that she has basically no damage or wave clear, a 100% utility ultimate, a controlled displace, poke and the ability to punish dashes. Her passive doesn't work in combat (or at all, basically unless she's in the jungle or running along the edge of a map) so all it's really good for is speeding up the process of deep warding.
Taliyah has very low damage, so my build usually looks something like
and
or
followed by two tanky CDR items of choice, so that you can spam your spells. I've debated dropping
for another tankier item, but I'm not sure what.
Lane phase consists of poking and warding. Trying to help get/deny kills with your displace. Once you hit 6, commence Trump spam and use your wall to get your jungler/adc kills and burn summoner's spells by cutting off enemy escape routes in lane.