Nunu & Willump

Biggest Snowball Ever!

Lane harassment and consistent damage output.

Predator

Add an active effect to your boots that grants a large boost of MS and causes your next attack or ability to deal bonus adaptive damage.
Cheap Shot

Deal bonus true damage to enemy champions with impaired movement or actions.
Grisly Mementos

Collect 1 memento on champion takedowns, up to 18 total.

Gain 6 Trinket Haste for each collected.
Ingenious Hunter

Unique takedowns grant permanent Item Haste (includes Trinkets).

Empowered abilities and resource manipulation

Celerity

All Move Speed bonuses are 7% more effective on you and gain 1% Move Speed.
Waterwalking

Gain MS and AP or AD, adaptive in the river.

Nunu's lack of range and easy CC requires him to get into range to deal damage and set up teammates. Predator is great for hard engaging fights.

Cheap Shot is great for granting you additional damage after CCing enemies with [W] and [E].

Grisly Mementos is an all-around fantastic map control rune for junglers, allowing you to get deep vision for your team.

Ingenious Hunter is an almost must-have for anyone who takes Predator, lowering the cooldown and granting you more gank opportunities.

Celerity paired with Predator and Walkerwalking is a nice boost to your AP value for a bit of extra damage for ganks and controlling the jungle.

Waterwalking's enhance map mobility allows you to effectively counter jungle and sneak early and often dragon's with paired with your [Q].