Mc comes through a void fissure next to ben when he first gets the omnitrix
No warframes, mc will just possess ben and help him fight
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Ok, new idea: gwen is the one who get the watch and mc is ben with tenno powers and memories. Also, mc will apear like ben to everyone else, but for gwen and other anodites mc will have turquoise eyes and hair, on top of having turquoise smoke coming off of him(this all being mc's void energy)