New champions concept ideas

I've always thought it would be very interesting to have a these new champions in the game (though I've only just imagined them as concepts, not any idea about any kit):

• A voodoo shaman (it obviously suggest some kind of voodoo kit on enemies, somehow)
• A shapeshifter (it would be great just to shift and take your enemy's shape to get their passives, for example)
• A clumsy bumbling guy (girl?) who does everything on accident and asks sorry when killing people (ultimate would be "Sneeze", he does sneeze and deals damage + fear enemies, it just fits into the clumsy deal)

Please, these would be awesome!