Certain cards like Nemeses Corridor or Primal Seed can bring banished cards back to the owner's hand, but they should keep in mind that any card banished by Crossout Designator will still be negated during that turn
Aethersquall Ancient A big flier that can act as a Cyclonic Rift in an energy deck is nice
The two most valuable ones are "Hajun, the Winged Mayakashi", who can Special Summon "Dakki" from the Deck and immediately set up the Deck's Synchro and Link plays, and "Yuki-Musume, the Ice Mayakashi", who is an extender that can mill "Mezuki" for another extension
Those five cards are generally some combination of disruption in the form of Force of Will, a draw spell like Deep Analysis or Edge of Autumn, Thassas Oracle as your actual win condition, possibly some mana accelerant like Lotus Petal, and Cavern of Souls to ensure your Oracle resolves
Another cool function of the app is that it includes a lore points counter tool, which is going to be very useful when playing the game, either at home, school or at your local game store
With Kaldheim having ten realms to represent, we wanted to be able to show off each in all of their beauty