The more important announcement from March 20th's Twitch stream detailed an entirely new game (or format?) inside Lorcana called Illumineers Quest
SE Secret Rare QCSE Quarter Century Secret Rare Millennium Ankh X SPELL Show 5 "Forbidden One" Monster Cards from your hand, Deck, and/or face-up field, then Special Summon 1 "The Unstoppable Exodia Incarnate" from your Extra Deck, then shuffle the face-up Monster Cards you control into the Deck, except "Exodia" Monster Cards whose original Levels are 10 or higher, and "Millennium" Monster Cards, also you cannot Summon for the rest of this turn
The effects of Mega Evolution could linger for years in the Pokmon TCG and that's a very good thing
With Blightbelly Rat thrown in the mix youd kill your opponent in 10 turns with poison damage (because of toxic 1) and combat damage (because the creature has 2 power)
Her personal weakness, "Dark Memory", forces her to relive the worst moments of her Hyperborean past self, either damaging her sanity or increasing the current Doom
Gravekeepers Watcher effect could negate the activation of a Spell/Trap Card or monster effect that could make the opponent discard when it resolves, and this could be used against Mind Shuffle and Celtic Mystic