Fusions are when to people or forces merge into one. This can be done in many ways 1 being the fusion dance, mostly used by gotenks, the fusion earings or the potara earings, used by Gogeta or Vegitto, and there is the Ancient Namekian fusion, Moostly used by Namekians. If One of these fusion were to go wrong there could be serious concequences. Like Voku, Or Goketa, or Gotanks, The namekian fusion is proabaly the safest casue there are 2 nameks fusing and it is made my the nameks. More to come soon...