It went down the menacing route of Team Rocket, which included holo trainer cards for the first time and the first ever secret rare card which happened to be a Dark Raichu
If the activated ability's cost contains a choice, such as a creature to sacrifice or a number of counters to remove, the copy uses that same information
Battles can be cast during your main phase if the stack is empty (like creatures, sorceries, and other non-instant spells)
And it's colorless so it can fit into any Commander brew with no matter its color identity
Not only does the card feature an amazing illustration in the same art style as old Pokmon concept art and the first Pokmon movie, but it is also a holographic rare, making it one of the more collectable pieces of Base Set
According to Wizards of the Coast, these cards will be shown off by Square Enix