Observe whats competitive, figure out what you want to play, and obtain the cards that apply
Agatha's Champion's fight effect is ideal to either destroy a would-be blocker or take out a small creature with relevant abilities, or dispatch a flier that the green deck can't easily block
More specifically, the Combat Thunder Attack deals an extra 20 damage for every Benched opponent
It's going to be interesting to see how the latest set, Sword & Shield Lost Origin , is seen because it is the second main series set in a row that has a special Trainer Gallery subset consisting of Character Cards, Character Super Rares, Full Art Trainers, and Black and Gold VMAXes that can be pulled in the Reverse Holo slot along with the new card type Radiant Pokmon
A premium Pikachu card from any era tends to hold and gain value