the only piece of the puzzle that we need to play a full playset of is Team Magma's Secret Base, because there's no way to access it apart from drawing and Trainers' Mail
The complexity level is marked on the front of the box, towards the bottom, with a Level indicator
Anyways, the impact of this is horror able
If you are not the Monarch when your upkeep rolls around, Court of Garenbrig only grants you two +1/+1 counters to put among your creatures as you choose
Then, when you ping the opponent, as long as Ballista has enough counters to survive, youll gain a life, triggering The Destined White Mage to put another +1/+1 counter on Ballista
Following the theme of sets like Unified Minds, Hidden Fates features a healthy mix of some of the best full-art Trainer cards to complement excellent Tag Team cards with some of the most legendary Pokemon in the series