Only double spend. you can try on Fomero . I used only for small transaction 200-300 USD. and you need to have the money. the website want 10% for double spending .
I don't recommend using this type of websites for large amounts of money . Make your own script for double spending , Don't use public websites .
I don't recommend using this type of websites for large amounts of money . Make your own script for double spending , Don't use public websites .