...No card works that way. There is no card in the game that can declare more than 1 attack at a time. (And it would be dumb if there was.) Wildedge's effect is identical to Asura Priest, Machine Lord Ur, Berserk Dragon and Grasschopper's.
chimeratech overdragon cannot attack the same monster twice in a row and it cannot attack directly after attacking a monster either, u need to special summon monsters to your opponent’s side of the field so it can attack 5 times
Given that Overdragon's effect only allows extra attacks on monsters, and since in Duel Links, the opponent can only have 3, Overdragon can only get 4 attacks in, unless the opponent has a monster that can't be destroyed by battle and will need have some way to negate battle damage as a Overdragon with 5 materials will have 4000 atk, or you'd win before 5 hits, the skill wont win often.
You know, it is possible for the skill to come up in competitive play. Amazoness Queen is still pretty common. Throw in an Anti-Magic Arrows to counter the Onslaught and you get through even a defence-position Amazoness.
Not a consistent strategy or great gameplan, but hey, if you don't have a better skill, why not?