Get rid of Black Cleaver and replace it with Ravenous Hydra. Why? Because Black Cleaver doesn't work with Warwick's kit. Let me explain: So it has built in armor reduction, but that armor reduction is only activated with physical damage. All of Warwick's abilities are magic damage so they will not activate the passives of Black Cleaver. Ravenous Hydra on the other hand works amazingly well with Warwick's kit and I would make the argument that it's not only a viable replacement to Titanic Hydra, but a better option in some cases as well. It does an absurd amount of damage (I typically am able to one-shot squishies with my ultimate), it gives you much needed wave clear, and it gives you life steel which is perfect for dueling. Not that these guides are wrong, but when you build Warwick mainly tank, you take away his amazing dueling potential. Sure, he is still an excellent duelist against a low HP opponent, but I always recommend that you build at the minimum 2 damage items (one of them being a life steal item). Warwick's ideal life steal item is definitely Ravenous Hydra.

In cons you say he is weak to cc and kiting, wouldn't you say it would benefit him more to take tenacity on masteries?

What do you say about Magic Penetration Runes on Warwick? Of course, I'm not talking about a huge Magic Penetration, only a few amount for the early game, to take on champions who rush MR as first items.
Also, why didn't you include Wit's End as a possible item?
Don't you think it's a good item against Ap Bursters and champions with high MR?

Excellent Guide,
Gave me a 11/4/5, the game was short, the enemy team surrendered
But hey I want you to do a Guide of Nami, Garen or Riven
Yes, Garen hahaha
Well excellent Guide again, I hope you make the guides q I said
Until next time

Can i ask Why you take Boots of Mobility instead of Mercury Thread or Ninja Tabi? overall your guide is amazing :D

Wow! This guide is extremely thorough! I don't play WW, but this guide caught my eye; I don't know, I may just pick him up!

Well done!

EXCELENTE GUIA, PARABÉNS!
Oi amigo, gostei muito do seu guia, ajudou nas minhas principais duvidas, porém ficaram algumas que eu espero que você posso tira-las, tenho jogado com o warwick só porque tenho 2 skins dele a selvagem e a cinzenta, porém resolvi aproveitar esse tempo para adquirir conhecimento sobre o campeão. Nas minhas partidas gosto sempre de fazer o Warwick um tanque completo, praticamento só faço item de defesa, gostei bastante do sustem dele na selva pois proporciona a chance de fazer dragão sozinho, joguei 3 partidas com ele perdi 2 dai resolvir estudar um pouco ele.
1- O que acha do Warwick tanque? é bom? quais os melhores itens para ele tanque?
2- Quando devo escolher o Warwick?
3- Ele é forte contra quem? e fraco contra quem?
4- Gosto muito de escolher 1 campeão principal para cada rota, o Warwick é bom para ser esse campeão principal para selva?
5- Porque Hidra Titânica é importante? é situacional? se sim, quando?
Desde já agradeço, e espero ansioso pelas resposta obrigado.