Taliyah's ult should do damage.
I am not saying this because I feel like she is underpowered. I am saying this because it looks like it should do damage. A bunch of coiling chunks of earth that throw enemies into the sky because it's so forceful feel like they should do damage. Not a crap ton, just some. I feel like it would add a lot to her as a champion. Nice long range, good mobility, a finisher (unless it is dodged because it has a brief channel), a good but risky engage, a nice zoning tool. I am not going to suggest numbers, but it just seems like it should.
Cheers!