I've been using DeepL mainly, along with translator aggregator and jisho. Those parts aren't to big of a deal, but occasionally there are parts where slang is used and it doesn't have a proper translation for english.
As for the meta skills I'm not sure, but skills that raise your AP are nice to have to speed along minor fights. I changed the skills names, but in the first gacha pack there is the temper spirt gem that raises maximum AP by 1. In the second gacha pack there is the focus breathing gem where you can raise your AP by 2 or heal 10 HP. Fighting spirit can also raise your AP while healing you for 4 HP.
Ice blade is a a nice move to have for its freeze effect. If you have Kurama's multi strike special skill it can make the fights pretty easy if you store up enough AP to use it continuously. You can also use the adventurer item under your abilities tab to learn any move that you want, as long as you have progressed far enough into the game, you also need to have enough proficiency points to spend on the moves.
