This site has not yet been updated to reflect the changes in Reborn v19.5. It still only reflects the state of the game as of v19.16.
When the Pokémon enters a battle, the effects of Light Screen, Reflect, and Aurora Veil are nullified for both opposing and ally Pokémon.
There are no Pokémon with this ability. (It's probably a Gen 8 ability that's snuck its way into the database by mistake.)