Their Ability, Violent Appetite, lets their trainer heal them for 60 HP when discarding a pokemon card from one's hand, allowing Naganadel & Guzzlord to stay on the field even longer than normal
From what I've been hearing it was originally started as a kickstarter business printing foil playmats (which I must admit would be pretty cool)
This Treecko does, admittedly, look a little threatening, which is fitting for a card from the Team Rocket Returns set, which featured the return (fittingly) of cards with the Team Rockets Pokmon moniker
The best part is that those tokens are often the most expendable because they cost less than a card to create
Whether Ob Nixilis will get banned is up for debate, though right now it feels likely
This event was held at various Pokmon Centers and Pokmon Stores between 23 July and 31 August 2016