I only used Annihilape in Pokemon Emerald Rogue, but that thing may be the one of the best regular Pokemon they've ever created. Great bulk, hits like a truck, has pretty good speed, an excellent signature move, and the best possible offensive typing you could ask for in a Pokemon.
Just a very fun mon to use.
Ah, yes, the Negotiator:
General Kenobi
<sneaky beeping>