This card, Secrets of the Gallant, would be beneficial in a deck that focuses on swarming the field with Normal Monsters and aims to control the opponent's hand size
I kinda get that
If you take a Pokemon on the Bench, you still get the point for the KO, allowing you to use Articuno to finish off weakened opponents, even if they retreat: while 10 damage isnt a lot, it will quickly rack up round-on-round, especially if they are already damaged
Although two copies is more common, one makes sense in Caroll's more combo oriented build of the deck
Many of reds discard your hand, then draw effects only get two or three cards, but this brig has practically no limits
However, the foil treatment makes that specific version of the card scarcer and often more valuable