If I could use spiritism to get correct lottery numbers, I would use it to confiscate every toilet paper from the Rothschilds. I would use it to sucker them into dumping all their assets at fire-sale prices or throwing them into the rubbish, and then I would buy at those prices or take them out of the rubbish. After which point, I would put the squeeze on all those corrupt banks that were stupid enough to short sell silver--effectively confiscating all their wealth.
After doing that, I would do unto them what they have done unto me: Confiscate all their power. That way, they would not be in a position to enslave anyone including me because I would turn the tables on them and enslave them right back. At which point, there would be no point in my becoming a witless--and, if I die with all the power, the whole Rothschild empire would end right there and the nations would be able to get their debt down without jacking up taxes. Which would result in my ultimately being remembered as George Washington is: For liberating countries from slavery.
Why would I settle for using spiritism for merely picking a few winning tickets to make only a few hundred thousand toilet papers when I could do something that ultimately would disenslave myself?