Like eBay, Amazon, and any multitude of digital storefront hosts where individuals and businesses had begun selling Magic cards, TCG Player let individuals sell both on a small scale and in bulk
Spoofs By 1994, early text-based parodies of Magic Cards had became popular in e-mail forwards, on fan sites, and other early web humor sites such as Frivolity.com
Unless that creature leaves combat, it continues to be a blocking creature through the end of combat step, even if the creature or creatures that it was blocking are no longer on the battlefield or have otherwise left combat by then
I personally would leave it be like your 1st effect, without Poly but the monsters should be on the field
If a creature attacks a planeswalker, that planeswalker's controller is the defending player
Because of this, some promo cards are very rare and hard to obtain, which makes them worth more