I think that this card is especially great when playing lightning rod commanders like Prosper, Tome-Bound that are in colors that lack many good ways to protect them from being destroyed
Fallen of Argyros also has a niche application in the mirror match, as it can detach 1 or 2 materials from an XYZ monster on the field, which makes this an intriguing Thunder-type monster an interesting option to deal with XYZ-focused decks
One specific kind of ranked event can be entered with gold and pays out prizes in gems, allowing for (slow) conversion between the two currencies, but unless you have a lot of free time and are very good at the game, serious play will probably compel you to spend money
Fishing Pike, a new Treasure Isles Spear style by PotatoLordEvan
They collect, trade, and follow the Pokmon card world actively
Its no Shaman of the Pack though