Battling is locked at first, as are a few other areas, which I think makes sense given the depth of areas and features that are available to explore initially
Since most Commander decks contain many cards that are synergistic with their respective commanders, it stands to reason that the average player would prefer to have their commander on the battlefield as often as possible
#30 Demonic Counsel Last, but not least, we have Demonic Counsel, a new tutor in black
The safest approach is buying from sellers with serial-tracked inspection procedures
You are free to use the abilities of your Active and Benched Pokemon every turn
If you're playing with all cards legal, Black Lotus and Ancestral Recall, here they come