We already know that there's no Gold Rayquaza in the set so it makes 0 sense to release the normal one
Talrand teaches new players the blue toolbox, which is card draw, interaction, and tempo, while rewarding them with a board they never had to commit to the battlefield
Surprisingly though, with a little bit of digging, you could use Ancient Mew in a game of the Pokemon TCG
Abyssal Gatekeeper Agate Assault Agate Instigator Agate-Blade Assassin Azor's Gateway Azorius Guildgate Baldur's Gate Bar the Gate Basilisk Gate Battlegate Mimic Beluna's Gatekeeper Beluna's Gatekeeper Black Dragon Gate Boros Guildgate Call the Gatewatch Case of the Gateway Express Castigate Celestial Gatekeeper Cemetery Gate Cemetery Gatekeeper Cho-Arrim Legate Citadel Gate Cliffgate Congregate Consulate Skygate Cryptic Gateway Deepwood Legate Demon of Death's Gate Deploy the Gatewatch Dimir Guildgate Dolmen Gate Draconian Gate-Bot Floodgate Fumigate Gate Colossus Gate Hound Gate Smasher Gate of the Black Dragon Gate to Manorborn Gate to Phyrexia Gate to Seatower Gate to Tumbledown Gate to the Afterlife Gate to the Citadel Gate to the ther Gatebreaker Ram Gatecreeper Vine Gatekeeper Gargoyle Gatekeeper of Malakir Gates Ablaze Gates of Istfell Gatewatch Beacon Gateway Plaza Gateway Shade Gateway Sneak Gods' Eye, Gate to the Reikai Golgari Guildgate Gond Gate Grond, the Gatebreaker Gruul Guildgate Guadosalam, Farplane Gateway Guardian of the Gateless Heap Gate Heaven's Gate Hengegate Pathway Hold the Gates Irrigated Farmland Izzet Guildgate Krydle of Baldur's Gate Kyren Legate Lavabrink Floodgates Legate Lanius, Caesar's Ace
While these General Mills Promos can't hold a candle to some of the most valuable Sun & Moon era promos, they're gaining value and attention over time, as we get further away from their original release dates
