Mythical status and event-distribution scarcity in the games A starring role in the 2018 movie The Power of Us A fast, agile Electric-type design that reads well at card scale Novelty as one of the first Gen 7 Mythicals to get a modern Mega form Central Mythical in Pokemon the Movie: The Power of Us (2018) Recurring event and distribution Pokemon across Gen 7 and later titles Mega Zeraora ex is a Basic with 270 HP
That can be a drawback, obviously, but once Gyarados ex is your active Pokemon, it's highly unlikely that you will be relying upon anything else
If you pull an Incineroar ex card from the Deluxe Pack ex booster, it will count towards the completion of the loaner deck and theme deck, as well as all of the relevant themed expansions
Outside of Mono White and Boros, however, I think the other colors have access to so many more reliable sources of card draw that I'd be more picky about recommending Mangara, though there are quite a few decks where it will shine
Psychic Malamar (including a myriad of psychic attackers throughout its existence including Deoxys CST 67, Giratina LOT, Necrozma-GX, Dawn Wings Necrozma-GX, Mewtwo SM77) has been more popular and successful than the Ultra Necrozma-GX variant, but Ultra Necrozma-GX still sees some play
Almost two years later, the Pokmon Trading Card Game added the Fairy-type in the first set of the Pokmon X&Y series of sets