just spam Hungering strike
+1 i use this for my warwick cuz im too lazy - and poor u_u - to buy runes

I do think that in general when you make a build, you should restrict yourself to 6 final items in the top toolbar, and if you have recommendations for more, either make more builds or include discussion on those items in the body of your guide. I've seen some warwicks do well with the AP/CDR path but I have to remind you that he has one ability that sclaes with AP, his Hungering Strike, and it deals damage as the GREATER value between that and 20% of the enemies maximum health, which is a significant number. So to have success with warwick as a mage, you really need to go deep into the AP route and do it fast, which is somewhat difficult. An enemy with 3000hp would require you to have 325AP just to deal the equivalent 20%hp damage, and your build doesnt seem to have much more that than, just something I noticed. I do like the guide however, but I think you should rethink your build order or general strategy.

Do you think this build is very viable in 3v3? I've been using it at a very low level (new to the game) and it's been phenomenal, but I want your opinion on whether or not it will be viable once I start facing people that are a bit more competent.

Looks good I will buy warwick just to try your build !

The only one misstake is that you don't have Madred Bloodrazor at this build so you don't do as much damage as you should do. I won't vote cause + is bad for it but - also is bad

AMAZING GUIDE and epic build :D worked great for me :) keep it up pro

Finally i tried and its..!!!@@@@@###$$^^:D +1.

Thanks for the comment I'll try the items you proposed and try to take them into my build if it works :).

but this is just my opinion people play differently

Good build for laning ww i would just add spirit visage because it's so important in ranked especially with a support that heals u not only do u have CD reduction but u have MR and health ur self more it's the most important to have item for WW i would also get hextech gunblade alot sooner than death cap because of his passive more life steal also if ur not gonna jungle WW u shouldn't get the buffs so i wouldn't add utility mastery because he isn't a mage or a AD carry, i would probably get exhaust instead of ignite because i don't see why you need ignite maybe ghost or exhaust is great against their AD carry and ghost will make you so much fast if you can smell blood no one will be able to run away let ur mage take ignite. i also think madreds is alot better than deathfire grasp because it stacks with ur ulty and helps alot at baron and dragon which is very important in ranked and Nashor's Tooth and spirit visage is enough CD reduction because there is a 40%CD reduction cap. other wise the build is great +1

Dude, i tried the build. Triple kill, I have enough cd, enough ap. Just perfect. I use that spell once I get my 60% hp back! BAM. Dude +1