What if for Nunu's eventual rework, Riot split him and Willump into 2 champions?
Like, have Nunu be an ADC That throws snowballs and have Willump be a jungler, then if both are in the same game Nunu can ride on Willump into battle after a certain level.
Split into 2 champions for 450 IP Each, but if you already owned Nunu you get both.