While it sold for over $1,000 in Japan, it only reached $127 in its English print
The restriction on keeping Reclusive Wight is so stifling, theres no realistic way to both keep it alive and have any sort of gameplan that involves attacking or blocking
You must also track how each became face down (manifested, cast face down using a morph ability, and so on)
While not (yet) an officially supported format by Wizards outside of a few Arena events, I think its easy to see that Brawl on Arena has become wildly popular and Historic Brawl is a natural extension of that format
When a Creature with Offspring is cast, you may pay an additional amount of generic mana usually 1 or 2 to Create a token copy of the Creature
Having the ability to hinder an opponent's creatures is valuable in draft games due to the dominance of creature-based strategies