It is still a fine card, it will find you useful things and hopefully put some other useful things in the bin but it is just on theme filler in that setting rather than something you actively want
The deck uses Gardevoir ex to attach Energy to multiple attackers, including itself (190 damage is not that much, but it deals well with smaller Pokmon), and Gardevoir CRE, to deal with other Pokmon
Fill in the other slots around this colorless planeswalker with lifegain, ramp, and card draw and you get a bomb late game play that excels in Brawl or some niche Pioneer decks
Begin Your Adventure Experience it.This is the New Era of Card Games
For instance, if you have a card that can knock out your opponents active Pokmon, consider waiting until they evolve it or attach a key Energy card before playing it