Hello, I picked up senna off the recent event and have been having some fun with her, I wanted to get some thought off builds and playstyle as I didn't really look much up. I usually play with my taric main friend so I've been playing more adc, but I'm a support main and have been playing her support by myself.

For both, I've always ran:

Phase Rush - Manaflow Band, Transcendence, Gathering Storm Eyeball Collection, Ultimate Hunter

With a build of Tear - Divine Sunderer - Manamune - Umbral Glaive - Collector

And replacing Sunderer with Collector when there are no tanks on the enemy team and just going no mythic. I don't feel very useful until the scaling kicks in but at two items I pretty much melt anyone while being fast enough to kite well (which as a support main I am not very good at)