While Pokmon TCG Live will be very familiar to fans who previously played Pokmon TCG Online, there are a number of new features, changes and differences worth knowing about before you dive in - especially as Online has now been taken offline, leaving Live as the only way to officially play the Pokmon TCG online
A Powerstone is a colorless artifact that can be tapped for one colorless mana
If you are playing a deck that can effectively get a key combo piece into the graveyard via something like a discard or counterspell, following up with Surgical can end the gamefor example, against Ad Nauseam
That said, it's still not something I would rely on
Interestingly, the majority of the text on the Frenetic twins hardly matters
The Beast, Deathless Prince is yet another example in a long list of really fun but really niche Rakdos commanders