In 1936, Alan Turing proved that no algorithm can determine the answer
Giving them time to recover likely means they win
Generic stamped promos distributed through events, prerelease kits, or retail bundles tend to have high supply and high submission volumes, which means populations are larger than people expect and the premium over raw is often minimal
On top of that, Aether Channeler gives you other options and an ETB for Yorion
Some cool combos are available here, allowing you to send Mickey to the discard to play out some much more powerful characters for free
He sources his cards as a retailer, rather than a customer, invariably receiving crates of stock of each product, which is opened daily on his channel, and almost always given away to viewers