Nunu ability guesses
Passive - Ally attacks on enemy champions create a mark that you consume on hit giving you and that ally an attack speed and movement speed buff.
Q - Same as before but can now target champions doing magic damage instead of true and can no longer target epic monsters.
W - First cast - create a circle around you that lasts 4 seconds. Any enemies within the circle at the end of 4 seconds who were hit by 3 snowballs get snared.
second cast - 2/3 charges - throw 3 snowballs in rapid succession in a target direction doing magic damage and slowing the enemy hit.
E - create a growing snowball in a target direction and gain movement speed. Recast to throw the snowball within a cone in front of you that stuns and does magic damage.
R - same as current