When playing a Reno deck in Wild I try to create a specific combo and the rest is dedicated to value and board clears, disruption. So it is as you say. It just gives you an extra edge. I want to play big hunter but there is a lot of aggro, so what do I do? Just make it reno, so I can heal to full without relying only on hollow hound, have zeph to clear the board, etc. That is actually one of my favorite decks and the only disruption it has is Mukla. 

My Shudderwock decks always have a specific combo in mind, and lots of other wincons. If I am against OTK druid, I'm only interested in drawing Loatheb, Okani, Macaw and Neophyte. Because you HAVE to, if you want to win a game against such decks. Against aggro, you try to look for devolve, devolving missiles, schooling or zeph. Against combo decks you look for mutanus or dirty rat, boompistol bully. You have to. In all other cases, I try to actually go for the combo: Board full of Moarg Forgefiends, OTK the opponent with Azerite Snake, steal minions with Griftah, give them windfury and go face. Going an all out deck is vulnerable if it's goofy, but going reno is when you get to actually play it. 

Rotate the zilliax!

Hearstone should be played with chillwind yeti and bloodfen raptor!