On July 31 the English market gets ST-31 through ST-36 simultaneously, one deck for each color in the game, each anchored by a Leader most players already recognize
Which, if I play that deck, I am
Like most Pokmon cards, the value of Araquanid depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Fusion Strike)
The pair of Pikachu are shown in traditional Japanese clothing for this same reason
The other gearhulks are cool as well, but with niche applications
Honorable Mention 2 High Priest of Penance One of the reasons I like Mogg Maniac, Loyal Sentry, and Typhoid Rats is that they punish someone for attacking on the ground