Whenever it attacks, you reveal cards until you draw a creature, then you put that creature onto the battlefield tapped and attacking
Closest visual comp, of course, is the 1999 BK promo cards, but this clearly has some differences
Essentially, Aegislash can be put on the Bench and, as a result, your Active Mega Altaria EX does +30 DMG with the formers Cursed Metal ability
Ill go more into Brawl in future articles
Where it really stands out is value: real-time and historical pricing, customizable price alerts so you know the moment a card moves, and a centering tool to check a card before you send it off to PSA, BGS, or CGC
Aftermath = Flashback A lot of different terms have been bandied around to describe aftermath, with "fuseback" being my favorite, since it captures both the split-card and "cast from the graveyard" elements of the cards, but most of these terms are not correct in terms of how the cards actually play