As someone who bought and sold over $100,000 worth of cards on eBay last year, I can attest to the protections eBay offers when compared to alternative selling options
(At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When this creature dies, draw a card for each age counter on it
Based on this card alone, this could be a deck that focuses heavily on interaction with the graveyard to discard and recall lands, but more realistically, it is likely that the deck will be set up to pull mana from sources other than just lands to allow for the discarding of lands without it impacting the deck too negatively
Over time, I suspect that these will continue to climb due to the Secret Lair not being printed to demand
Eri #136 (Pokemon Prismatic Evolutions | Pokemon Cards) prices are based on the historic sales
The Pokmon packs we recommend investing in are Pokmon 151, Pokmon Prismatic Evolutions, and Pokmon Ascended Heroes, as these are highly valuable 'special sets' that won't be printed for long