Here, it gives the Islandwalk ability, which
If the target creature's power is greater than or equal to Vodalian Mindsinger's power when the triggered ability resolves, it will be an illegal target for the ability, and you will not gain control of it
Hell, even looking at Teysa, Id clarify her as way more of a lifedrain deck a burn deck than anything else, as her typical play pattern is to double life manipulation triggers
However, the High Class reference would be lost on players outside of Japan, as theres only one type of retail pack available everywhere else
With its combination of nostalgic characters like Charizard and modern favorites like Iono, the Japanese Shiny Treasures EX set has quickly gained in demand