It's a battling/phantom Pokémon and puts a creepy curve on the primate's developmental line.
Before you get an Annihilape, you'll require a Primeape. To track down it, walk Southwest of the town Medali and get one.
The one I got definitely knew Fury Clench hand, however I needed to change its moves and have it recollect the move. Here is the full guide of its areas.
To develop Primeape into Annihilape, you want to utilize the move Fury Clench hand multiple times in fight and afterward level it up.