For example a new landscape or object for a land or artifact card
Pokmon keeps a lot of its cards inexpensive with many separate variations and making its chase holofoils and art cards focus more on collectability than playability, but sometimes cards that are both competitive and expensive like Mew VMAX can slip through the cracks and cost around $20.00 per copy
Often, people play Strip Mine and Wasteland with every idea of keeping their opponent off of any land or from casting any spell
This creates multiple different actions you can take almost any turn, leaving a lot of room to adjust your actions to go toe-to-toe with your opponent
Once per Duel, during your opponent's End Phase , you can destroy 1 monster your opponent controls that you own, and if you do, inflict 500 damage to your opponent, also for the rest of this Duel, you take no damage from cards you own
The ability can be something simple and short-term, like a pump until the end of a turn on cards such as Akoum Hellhound and Kazandu Mammoth