Duplicates are likely, however I will try and keep it to minimum
X and BREAK, which evolve from a Pokmon and give them extra attacks, EXes, which are like exes, but even stronger and don't require to be evolved, and GXes, which are like EXes, but have a powerful once-per-game attacks, and are once again required to be evolved up
Which Sets Left Standard with the Recent Rotation
Dead of Winter costs only half as much mana, but its effect scales with your total number of Snow permanents, making it more lethal as the game progresses
Once you have accumulated a wide board, you can then use an overrun effect to swing out for lethal damage
Instead, you can engage in rudimentary battles against AI and other players, open packs by waiting for the timer or rushing it via Hourglass objects that you get your hands on by completing missions, and these tend to complete themselves just by you playing