Despite the drawback of only being able to activate Tataru Taru's ability once per turn, there are still plenty of opportunities to build up a considerable horde of valuable treasure
The Ancient One is an 8/8 creature that can be cast for one Blue mana and one Black mana
As an MTG card, this puts it in similar company with budget reanimation spells like Miraculous Recovery, though with the artifact flexibility that allows it to be sacced for other purposes if no longer relevant for that turn
It can come from anywhere - your hand, the battlefield, your library, or even from exile if you can figure out a way to do that
You will learn what types of gold cards exist, how to spot fakes, which ones The Pokmon Company officially released, and how much the real ones are actually worth