Not judgin but, passing Lv50 with 120k BP sounds impossible, since yeah, there's a trick but you still need a big chunk of damage to kill all of the enemies with 10 rounds .. Hmmm, here's mine, as of this moment, only manage to clear this levels and currently sitting with less than 5 remaining attempts but can chill for now since i already got rank1 .. Might grind tomorrow if someone takes my rank ..

Earth Training is just simple, used my regular team (Only changed my chase to combo10 and used KoH summon since all enemies are Super Armors) ..