shuffle is harder when you get to later levels (currently on level 612) and for the most part I need at least 1 power up to complete the level though if you have Pokémon with good abilities and high attack and do the weekly victini and meowth event you should have enough coins to get the powerups and have your pokemon at way higher levels
…I'm still very upset that I got banned from DeviantArt. >_< [disappointed] I personally don't believe there is any way to have my account restored there, not even asking my friends elsewhere. :(