This is definitely a build just for fun. I can't see it being viable in ladder. Basically it's double jungle with stacking attack speed buffs for focused ganking. You don't know fear till you've seen these two run out, pin you down and **** you silly with attack speed and bloodrazors.

Taking advantage of warwick's ult, he's the perfect initiator for ganks here. He holds them still, stacks malady (Or black cleaver if you wanna switch the two around) on a target and Nunu ensures there's no surviving with his snowball. Both of them possess attack speed boosting support skills too, and to my knowledge? They stack. Go be ridiculous. Ganks start at level two or three, depending how well your enemies are doing.

Pros
- Ridiculous. It's a silly build that can really **** up prettymuch anything it gets hold of.
- You will succeed at everything forever.
- You can imagine the look of terror on an opponents face as the rapetrain charges out of the jungle.

Cons
- Double jungle. Better hope the solo laners are good.
- Lots of micromanagement. WW and Nunu need to coordinate and gank like crazy early on.
- It might be a bit too awesome for your teammates and they might "leave" the game. This is actually their computers telling them to **** off for not using this build first.
- But seriously, I reccomend doing this with people you know.

I only listed the end-sets because I think it's rather straightforward when building for the jungle - build for the razor asap, then your boots.

I suppose Warwick's spirit visage could be swapped out if you find enemies being too beefy (I should hope you don't with all that bloodrazor spam), as well as Nunu's Soul Shroud for another offensive item. I toyed with the idea of the ghostblade or shureyla's, but you don't need them with all the cc these two have.

**** you aren't gonna need to focus on much, considering the WTFRAPE this team can put out.

Just take smite and flash/ignite. No need to get all crazy here, you've got movement bonuses/snares covered.

I've seen people run rally in the jungle before but I'm a bit skeptical of it personally. It's decent for early jungle to get your extra damage in and save yourself the use of health pots/recovery time, but phases out of usefulness mid to endgame in my opinion.

Go in the jungle.

**** **** up. (Make sure you get the dragon at four-six and, if you're up to the challenge, Baron Nashor in midgame)

Come out and say hi to enemy champs.

???

PROFIT!

Just keep an eye on the top/bottom lanes. Neither WW or Nunu are laning, but they need to keep an eye out regardless so the solo players don't end up overwhelmed. This can be difficult to do at first - be patient! You don't have to team up for every gank in the early game. As soon as WW gets Blood Scent and Nunu gets Snowball, they're ready to make a sticky mess out of any champs they come across.

IDEAL SITUATION

They spot an enemy champ on his/her own, or maybe just two in a lane. Come in behind, Nunu slows one and WW ult's the other. Focus down the suppressed target, then take care of the slowed one. With proper cooldown reduction, Nunu can permaslow too. So that makes things pretty easy for this pair.

DO NOT INITIATE A TEAMFIGHT. Let a tank go in first, then back him up by focusing down enemy carries.

Counterjungling isn't a big deal with these two - you shouldn't be too far apart on the map at any given time, afterwall. WW can flash, use his ult and his passive blood scent to quickly make his way to Nunu and gang up on an enemy. They make a good team for baiting enemies in too, provided they haven't caught onto your shenanigans yet.

This definitely isn't a serious build, again. Have some fun and play around with it, as it won't work out for everybody.

But then again if it doesn't, you just don't like fun anyway and you're a bad person.