This game is such a moneygrab :/
The energy system is basically created to make you pay money if you want to play the game, and a lot of the later levels rely more on luck and having unrealistically good cards.
Kind of hard to go up against people running multiple white holes and mirror forces when the best cards ive gotten out of dozens of packs have 1500 atk...
 "NGU IDLE"){kind=icon}
 "Give Up"){kind=icon}
 "Yu-Gi-Oh! BAM"){kind=icon}