To turn USD10 into USD1000 in a day??? Easy!....just draw (in your best hand writing and imitation) two extra "zeros" at the end of that ten dollar bill
If anyone tells you he/she/it can turn usd10 into usd1000 trading the forex in a day, he/she/it is either lying through his/her/it's teeth or is extremely high on something.
Check out the Demo competitions on various brokers' site and you will see some fantastic gains achieved by some competitors in the space of a week or so of trading....but none as spectacular as what you have asked.
P/S But that "ancient one" might have a court magician or two who could achieve that feat