mermaid yugioh deck RD-KP04-JP011 - - Japanese - Enchanting increase your Life Points by 800 points during each of your Standby Phases. Knightmare Mermaid | Card Details

Alola changed up the overall series formula where instead of being an ongoing adventure around the region, it's now more of a Slice of Life series where Ash goes to school

Set Boosters The play boosters have two more playable cards and less variance with one less wild card and potentially one less uncommon than set boosters

See now this is why Aven Mindcensor is more awesome it shuts down a card like this from doing almost anything

Plus, you should easily be able to improve it if you have other Disney Lorcana cards available

Then he gets a power boost equal to your life lost this turn, which is easily done here in the Rakdos colors