Of course, you dont need to tune your decks against your pod and your playgroup might not be Spike-y enough to enjoy metagaming like this, but it teaches an important concept: Your interaction package must account for both what your deck wants to do, and how your opponents are trying to win
Lets take a look at the Top 10 Worst Magic Card Errors, and all the while well remind ourselves that everyone involved in these oopsies are human
check your internet connection
You can also go down the pod or toolbox route, finding permanents with powerful enter the battlefield abilities for any situation, whether its Eternal Witness, Noxious Gearhulk or Aether Channeler to name but three
The best place to sell graded Pokmon cards is generally eBay for the widest reach and highest auction potential, or TCGPlayer for a focused audience of dedicated card collectors