Heroes Tournament is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

Set in an unknown place, a group of historical Heroes from the world of manga are summoned by a sinister figure called Mr. Nobody to a battle royale to the death, in which only one of them will be able to get out alive, but these heroes have other plans to get out of this prison. Who will fool who? that’s something you can only answer by looking at the conclusion of this fight of never before seen proportions.