If you're fighting someone you outscale, then on-hit build with Bloodrazor, Ravenous/Titanic, then full tank. Good example of this is Shyvana, you'll literally outdo her in everything. I prefer this build for literally everything because it has stable conditions of what you want to do.
Otherwise you can do the Warrior enchant cheese Lethality (even though you mostly only need Youmuu's) Thunderlord's build. It's pretty garbage honestly but people like to use it, since if you execute R>AA>Q+AA+Ravenous, the opponent is most likely dead. He's worse at doing that than Rengar however, as the spell shield is proactive more than reactive on your ult dives. More than that, people build more AD than he actually needs all too often because "full AD mentality."