5* Killmonger duped or 5* Medusa unduped to rank 5?
I have two 5* at rank 4 ready to rank 5. Killmonger which is duped at 120 sig lvl and Medusa which is unduped but I have generic awakening gem and tons of generic and science sig stones. Here I would like to mention that I have 6* Black Bolt and 4* duped Karnak to the Royal family synergy together with Medusa. To rank 5 one of them will cause that I won't be able rank 5 my other champs in next few months. I have another 5* god champ at rank 4 which is Domino but I miss 2 mutant class 4 cats and then I have duped Quake at rank 3, which can I rank 4 and then rank 5 as well (have enough science cats). As usually, gold is limitation. So which of them should I rank 5?