Any time you have priority, you can turn a face-down permanent you control face up by paying its disguise cost
In my playgroup, we play with all 86 cards with no selection, but if you want to tool the shared planes deck, I would break it down like this: the planes can be separated into categories, and it could be done like this: Constructive planes: These are planes that progress the game forward in some form
That's $5.94 saved, five Black Bolt booster packs and a cool soft binder to put your master collection in (good luck with that)
At the end of the battle, the Pokmon are taken to a Pokmon Center and they're healed and as good as new within minutes
For example, if you have a 18 bulk rares that fit into a Modern Merfolk deck, group those cards together