Harvey Walters, why can't I hold ALL THIS POWER?

So the concept here is to have overloaded the Ancient Stone with Double or Nothing in a previous stage then swap it for Sleight of Hand later on. Then you use your stupid-big hand-size along with Glimpse the Unthinkable to do ~10 testless damage in a single action. Since you have two of those and can replicate the effect with Eidetic Memory, you should be able to kill an old one if you plan a little. Not that that's ended well for me in the past.