I got a few suggestions.
Liepard crest: if liepard hits the opposing pokemon with a contact move (fakeout, Nightslash, etc). It knocks off that pokemon's held item, or if it was a berry it eats that berry gaining the effects that it may have. Additionally if it has unburden, successfully knocking off/eating the opposing pokemon's held item. It counts as an item consumed for liepard and will pop the ability doubling its speed.
Essentially the idea of the crest is to give liepard a knock off/ bug bite effect on all of it's contact moves and make use of the unburden ability.