Hello~ MCB fandom on Tumblr, it's me again! I'm working on some Q&A translations for you. please forgive any missing details or awkward phrasing:
Blaion & Flame Nova: since Blaion is a firetruck type Cardbot, he's actually capable of spraying water just like Phoenix Fire. However, because that doesn't fit his personality, he sticks to blasting flames instead. The same applies to Flame Nova.
Mega Ambler: the secret behind his combat strength is that he used to serve on the front lines alongside the Star Guardians as an official medical officer. Given his high ranking background, the fact that he's currently called an "unlicensed doctor" suggests his license expired after he quit (likely following the Bloodwing Incident). According to post episode w lore, Mega Ambler left the Star Guardians after Bloodwing went missing to train new cadets as a doctor. However, his teaching methods were so rushed and sloppy that he was ousted and had his license revoked. Safe to say, teaching is definitely not his strong suit.
Fleta Z: according to an unofficial X space held on July 15, it was revealed that Fleta Z was infected with the Beast Virus by Night Griffon.
Buster Gallon & Black Hook (actual lines in episode 18): during Q&A, Director Oh revealed what they were actually saying:
Buster gallon: growing, distributing, marketing... running a business really takes a lot of work.. 재배, 유통, 마게팅... 장사 할려면 할일이 많군요...
Black hook: out of all the colors, black is the coolest... so why am I blue...? 컬러중에 컬러는 블랙이지, 근데 왜 나는 블루...
Heavy Iron's arc: according to the director's Q&A, Heavy Iron was originally meant to stay a villain and return to space at the end of Metal Cardbot Season 1. However, higher ups asked for a plot shift so he would reform and become Jun's friend instead. This decision turned out to be a game changer, Heavy Iron's popularity skyrocketed, making him one of the absolute fan favorites in W.
Heavy Iron's power control: some fans speculated based on Heavy Iron’s line in Episode 20 about still learning to control his power that he couldn't suppress the beast virus right after being infected, which is why he attacked Jun's group at full force. Shocked by his own strength, he started trying to rein it in. The director actually confirmed in a Q&A that when Heavy Iron fired his Heavy dragon breath, he was just trying to warn them to get out of the way, the attack was simply way stronger than he anticipated.
Ignyx's resurrection lore: according to behind the scenes info from the director's Q&A, Ignyx was originally planned to make entrance following the death of a main character, fitting its mythical beast concept.
The first idea was for episode 18, where Blue Cop would actually die from Savannard’s final axe blow, only to be resurrected by Ignyx.
The second concept involved Heavy Iron W getting lethally wounded by Tyrant Zero. He would leave his final words to Tachy before dying, and Tachy's tears of grief would trigger Heavy Iron's revival alongside Ignyx's arrival.
Solidhorn's early name: according to the developer Q&A, Solidhorn's draft name during development was "라이노포저" (Rhinodozer? Rhinoposer?? still checking for the exact english name, will update later).
Bloodwing's history: although Bloodwing was initially assumed to be a former Star Guardian alongside Mega Ambler, the director clarified during an X space that the two merely served in a medical unit under the Star Guardians 13th division, rather than being official members themselves. Also, claims that Bloodwing was conceived as an upgraded version of Mega Ambler turned out to be a misconception. A toy designer revealed on X that he was designed as an entirely distinct character from day one. Someone did suggest turning him into Mega Ambler's upgrade after his design was finished, but the idea was rejected.
How Savannard survived: when Heavy Iron fires his heavy dragon breath at point blank range, it obliterates all three spirits, breaks the weapon card transformation, and causes savannard to collapse. As for how Savannard survived taking a max power Heavy Dragon Breath point blank? A developer explained in a Q&A that the three vengeful spirits possessing Savannard wrapped around him like armor, absorbing the brunt of the attack and disintegrating in his place narrowly saving his life.
Savannard’s draft name: according to developer commentary, Savannard was originally going to be named "Tri Specter" (트라이 스펙터), which later got repurposed as the name of his ultimate attack.
Tyrant Zero's original draft: director Q&A info revealed that Tyrant Zero was originally planned to commit his evil deeds out of his own free will rather than being possessed by Dividragon and on a much larger scale. However, this was scrapped because the tone was far too dark, on top of production and implementation challenges. Among the scrapped plans, the final battle was originally set to take place in Mowtown instead of Porcaca. Ideas included infecting humans with the beast virus to turn them into zombie like creatures and hacking Mowtown's infrastructure to plunge the city into chaos, leaving the Cardbots to step in and restore order.
Tyrant Zero's design& lore speculation: unlike typical Beast Virus victims, Tyrant Zero’s eyes actually feature the distinct outline unique to Wild Cardbots. Since his appearance matches both the descriptions in Monohorn legends and the statues in the Tyrant Temple, it seems he’s remained in this form for a very long time. As revealed in episode 26, much like Savannard, he's a case of someone who embraced wild power and completely merged with it. However, during a fan Q&A, the director revealed that production behind the scenes was pretty messy to the point where even the staff didn't fully know how the story was going to unfold. Because of this, it's very possible he was originally intended to be a true Wild Cardbot before production plans changed. Since this was never directly confirmed during the Q&A, it leaves plenty of room for fan theories.