yugioh zexal structure decks Yu-Gi-Oh! Albaz Strike Deck which can let you dig further into the stories of Fallen of Albaz Starter Deck Yuma Deck 2016

Schuster, a former WotC employee, now works at Bungie on Destiny 2

This is from Scryfall

Also I have a problem with " these cards were very likely released as giveaway promotions on a smaller level after the release of Red and Green" you need to back statements up like this with real sources

It is easy to overlook that nothing will happen if the number of cards is not the same when resolving the effect

Given how rare creatures with horsemanship are, this card mostly reads as Rolling Earthquake deals X damage to each player and each creature. The unintended ability to damage and destroy flying creatures sets this apart from many other similar cards