The last ability gives you a ticket counter, but it doesn't enable you to put a sticker on anything
Supply is certainly going to be constrained (how many people came in second place during the Arena League that season?), and demand for such cards must be sparse in kind
It's a slow, annoying way to lose, which is why stall decks are frowned upon
In addition, it is very easy to trade knockouts favourably since my attackers are usually OHKOing my opponents Pokemon but very rarely get OHKOed in return (especially with Pot Helmet)
This makes the card with the Blocker ability the target of the attack, rather than the one that the attacker declared
I mean, honestly how do you get more in the spirit for the season than an ice skating Pikachu standing next to a Dynamax Glaceon