Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Threats to Nunu with this build
|Nocturne||His spell shield will hurt you early on, do not let him get close to you, he has a better early game cc advantage.|
-basically the most fun (other then lee sin), you will have in JG. His Q basically gives you a extra buff off each creature allowing for faster clear and more damage, defense. His Q is also a heal and can be considered another smite in most cases. Nunu is a champ that has a lot of sustain in JG and very rarely has to leave. Though i suggest you leave when you receive enough for a updated JG item.
Nunu's build allows him to gank easily. His E is a hefty slow and his W is a movement and attack speed buff allowing you to slow and grant movement to that lanes champion. Nunu's ult is a charge for damage slow, that can be comboed with bard.
~ Bard's Magical Journey is the most amazing combo to Nunu's Ult. If Bard uses magical Journey and baits a enemy champion into your ult its a easy kill, maybe even a double.