Late game itembuild

Hi everyone!

When it comes to late game sometimes it feels like items I choose don't really match. My standart core is 1) Kraken Slayer, 2) Stridebraker, 3) Wit's End. Can someone share what items should Bel'Veth prioritize as for 4-5-6 buy vs squishy team and vs tanky?
Thank you in advance.