nunu mid is new meta

That's awesome.

Unrelated: What amumu skin is that? Birthday Cake Amumu?

i played nunu mid for a good time when i started a few months ago, very easy champ and scary ap

It's a cheese counter to some picks sure. But it's not meta because meta means works in most standard situations.

Ap nunu mid works completely, he may have no range but his e will chunk the enemy midlane not to mention that his ult can mess up an enemy team if he is hiding in a bush. AP Mid= OP