>>528505283
Vice is a R unit but he seems like a legit option if you're gonna try and do the fight without the lily/sania combo. His thing is that his S1 has a good chance to land taunt and if Nico is taunted she doesn't do the big AoE slam attack. His S3 also has atk down and push back too which is good.

As for someone who can inflict speed down Marvell or Viper seem like they'd work. I've also seen people using Cachi The Guard too, mostly for inferno Sharon but I think he's good for Nico too. The def/immunity on his S3 is really nice and his S2 can land speed down as well.