I cannot even begin to describe how brilliant I think reachzero's concept is. I feel like we can do so much just with the polar characteristics of whatever we make. I think that type equalizing is a better way of achieving what we tried with Mollux, and that corebreaking is something I've never thought of before. So those three are my favorites.
Suicide lead Beat Up Weavile is downright destructive. Give it a try!