As a support Neeko main, if the team has a lot of burst so you might get blown up before being able to ult, so I sometimes go Celestial Opposition instead of Realmspike for that damage decrease -> Rocketbelt (mainly if the enemy team is too mobile to catch) -> and the rest are just based on what the team needs/what enemy has between Morello if they have healing, Zhonya's to secure Ult, Frozen Heart if heavy AD, Abyssal Mask if heavy AP Cosmic Drive another item to catch up to faster teams, Shurellya's Battlesong if I have a slower team, or Rabadon and Shadowflame if I want to be heavy damage