Masters of the Universe MOTU SDCC 2025 Panel Reveals

Mattel brought the power—and then some—during their Masters of the Universe panel at San Diego Comic-Con 2025, unveiling a wave of new figures that had fans buzzing. The reveals included the first look at the MOTU Origins Cartoon Collection She-Ra and her trusty steed Swift Wind, along with Wave 3 of the MOTU Origins ThunderCats crossover line featuring Lion-O, Panthro, and the creatively reimagined Panthor-Man. Making a surprising splash, Mattel also debuted the MOTU Origins x Transformers crossover line, showcasing Bumblebee Armor Man-At-Arms and Megatron Armor Skeletor. But perhaps the most hotly anticipated reveal was the grand return of the MOTU Origins Snake Lair, now fully revamped and ready to coil into collectors’ hands.

She-Ra and Swift Wind Cartoon Collection

One of the most magical moments from Mattel’s MOTU panel was the official reveal of She-Ra and Swift Wind joining the Origins Cartoon Collection. This duo marks a highly anticipated expansion into the Princess of Power side of the MOTU universe, now reimagined with the animated styling of the Filmation inspired line. With this release, fans can look forward to a faithful translation of She-Ra’s animated appearance, complete with vibrant colors, cartoon-accurate design, and a heroic new energy for the Origins lineup.

Here are some images of the packaging! The figure will be launching on Mattel Creations in September!

MOTU Origins ThunderCats Wave 3

The MOTU Origins x ThunderCats crossover continues to grow with the digital reveal of three new figures for Wave 3, showcased during Mattel’s SDCC 2025 panel. We knew that wave 3 was coming as we had early information that we revealed earlier in July 2025 so it was great to see the digital renders.

Lion-O

Lion-O, the fearless leader of the ThunderCats, is shown in classic cartoon style, complete with his iconic Claw Shield and bold, animated features.

Panthor

Panthro brings heavy weaponry and brute strength to the collection, captured in an icy-blue design that echoes his fierce personality and mechanical genius.

Panthor-Man

Panthor-Man is a fusion of the MOTU villain’s feline steed with ThunderCats DNA. Although the figure is a repaint of Battle Cat-Man, the figure is depicted with deep purple fur, green armor, and a snarling new face, adding a feral intensity to the wave and teasing what’s next for this wild crossover.

MOTU Transformers

Hasbro and Mattel have officially teamed up for a crossover event that’s sure to shake up the toy world, as they launch the MOTU Origins Transformers line—an ambitious fusion of two iconic franchises. Kicking off this unexpected collaboration are Bumblebee Armor Man-At-Arms and Megatron Armor Skeletor, two figures that embody a true hybrid of the Masters of the Universe and Transformers properties. This crossover reimagines classic characters through the lens of robotic armor and techno-fantasy, blending signature elements from both brands into a one-of-a-kind collector experience.

The figures are also up for preorder on Target’s website and Mattel Creations (check stock status after the jump):

Bumblebee Armor Man-At-Arms and Megatron Armor Skeletor are also available on Mattel Creations.

Mattel Booth Images

Both figures from the MOTU x Transformers crossover line—Bumblebee Armor Man-At-Arms and Megatron Armor Skeletor—were on full display at the Mattel booth during San Diego Comic-Con 2025. Attendees had the chance to see these unique mashups up close, showcasing the detailed sculpting, bold color schemes, and hybrid design elements that blend the aesthetics of Eternia and Cybertron. Seeing both figures side by side offered fans a glimpse into the creative potential of this crossover line, making it clear that this collaboration is more than just a novelty—it’s a full-fledged celebration of two powerhouse franchises.

Bumblebee Man-At-Arms

These images showcase the Bumblebee Armor Man-At-Arms figure from the Masters of the Universe x Transformers crossover line, a bold fusion of two legendary franchises. The loose figure highlights Man-At-Arms fully geared up in bright yellow armor with blue accents, unmistakably inspired by Bumblebee’s iconic color scheme. His chest and shield prominently feature the Autobot logo, while his helmet, hammer, and translucent blue sword bring a techno-fantasy edge to his traditional design. The packaging image reinforces the crossover theme with a retro-inspired cardback that blends MOTU and Transformers branding, complete with grid graphics and character art. Titled “Heroic Autobot Weapons Master,” this figure captures the essence of both properties, merging Eternian muscle with Cybertronian tech in one unified, display-worthy release.

Official Images

Man-At-Arms enters the fight for Eternia with a powerful new upgrade—battle armor inspired by none other than Bumblebee. In a groundbreaking collaboration, two of the biggest names in action figures have come together to create the Masters of the Universe x Transformers Bumblebee Armor Man-At-Arms Action Figure. This unexpected fusion features impressive detailing and includes four removable armor pieces. Staying true to his role as the Royal Guard’s weapons master and combat instructor, Man-At-Arms also comes equipped with an arsenal of fitting accessories.

These images spotlight the Bumblebee Armor Man-At-Arms figure from the MOTU Origins x Transformers crossover line in dynamic, battle-ready poses. The figure features a striking combination of bright yellow and blue armor pieces with the Autobot insignia proudly displayed on the chest and shield. In the first image, he’s shown with a determined expression and swappable faceplate, wielding a translucent blue sword and a spiked shield that reinforces the Bumblebee-inspired design cues. The second image shows the helmeted faceplate option, along with his signature mace raised high and the energy blade gripped in his left hand, emphasizing his dual identity as both Eternia’s weapons master and a mechanized warrior.

The figure is shown in a battle-ready stance, equipped with his signature yellow shield featuring the Autobot logo, a translucent blue blade, and a small blaster in hand—perfectly blending Eternian weaponry with Cybertronian tech. The second image reveals the back of the figure’s armor with a circular port, while showcasing a more classic Man-At-Arms expression beneath the helmet. The sculpt retains the muscular MOTU Origins build, now enhanced with angular, tech-style armor pieces and bold yellow-and-blue Bumblebee-inspired colors.

Megatron Armor Skeletor

These images showcase the Megatron Armor Skeletor figure from the Masters of the Universe x Transformers crossover line, where Eternia’s most infamous villain is reimagined with the brutal power of the Decepticon warlord. The packaged figure is prominently displayed against a retro-inspired cardback blending both brands, complete with vibrant grid graphics and crossover artwork. The loose figure reveals Skeletor outfitted in silver and purple armor reminiscent of Megatron’s G1 design, featuring a large Decepticon emblem across the chest. His accessories include a stylized mace with a pink blast effect and a massive black fusion cannon reimagined with snake-like detailing, adding a distinctly MOTU twist. The green face and signature hood elements peek through the armored helmet, blending both identities into one striking villainous form.

Official Images

In a crossover no one saw coming, Hasbro’s Transformers and Mattel’s Masters of the Universe have joined forces to bring collectors the Megatron Armor Skeletor action figure. This fusion reimagines Skeletor as the Evil Decepticon Lord of Destruction, equipped with powerful armor inspired by Megatron himself. Designed in the MOTU Origins 5.5-inch scale, the figure features 16 points of articulation along with deluxe sculpting and a range of weapon accessories that highlight the blend of two legendary villains in one striking release.

These two images show Megatron Armor Skeletor in dramatic poses that showcase his fusion of MOTU Origins body style and Transformers-inspired armor. The front-facing pose highlights his menacing expression, angular chest plating with a Decepticon insignia, and a pair of translucent pink energy accessories—one coiled like a serpent and the other mounted to his staff. His right arm wields a massive black cannon, a clear nod to Megatron’s classic G1 weapon. In the rear-facing image, Skeletor is turned slightly to display the full detailing of the back of his armor, with silver and purple plating reminiscent of a Cybertronian battle chassis. The translucent purple sword in his right hand and intricate back molding reinforce the hybrid theme, bringing together the fantasy of Eternia with the mechanical menace of Cybertron.

These new images of Megatron Armor Skeletor showcase the fusion of two iconic villains like never before. Skeletor’s classic blue skin and sinister grin are fully intact, but now enhanced with Megatron’s distinctive silver and purple armor, featuring the Decepticon insignia boldly across his chest. The figure comes armed to the teeth, wielding a blaster cannon styled after Megatron’s classic weapon, along with a translucent pink Havoc Staff adorned with a dynamic energy effect. The second image shows the figure in an aggressive stance, ready to fire the oversized fusion cannon mounted to his arm, highlighting the mechanical enhancements and sculpted detail in the crossover design.

Mini Comic

This image shows the cover of the Masters of the Universe x Transformers crossover mini comic titled “By the Energon of Grayskull.” The artwork depicts an intense battle between two armored titans—Bumblebee Armor Man-At-Arms and Megatron Armor Skeletor. Man-At-Arms, clad in yellow and blue armor with the Autobot insignia on his chest, is delivering a powerful punch. Meanwhile, Skeletor, outfitted in Megatron’s silver and purple armor with a Decepticon emblem, looms large behind him, launching a counterattack with his massive fusion cannon. The background is filled with dramatic clouds of smoke and a vibrant, explosive sky, giving the cover a dynamic, retro comic-book feel. The crossover logo sits prominently at the top, blending the classic branding of both franchises.

Snake Lair 2.0 Reveal

The Mattel team also revealed the fully revamped MOTU Origins Snake Lair! The Masters of the Universe Snake Lair, the slithering stronghold of Lady Slither and the Snake Men, is finally becoming a reality! Originally appearing in Classics Mini Comic #5: He-Man vs. Skeletor! Their Final Battle, this fan-favorite fortress never made it to toy shelves—until now. Thanks to the MOTU community’s Eternia’s Choice vote and plenty of fan input, the Snake Lair is being brought to life with all the sinister details you’d expect. From a throne room tailored for Lady Slither to trap-filled defenses like blasters, capture claws, snake shackles, and even an iron maiden, this playset is loaded with features. This is a one-time opportunity to claim the set and fully unlock all tiers to restore Lady Slither’s lair to its former Preternian power.

The Masters of the Universe® Origins Snake Lair Playset is a massive, intricately sculpted fortress designed for both play and display. Measuring 28.46 inches wide, 16.04 inches long, and 29.30 inches high when opened, it’s scaled to fit MOTU Origins figures and aligns perfectly with previously released Castle Grayskull and Snake Mountain sets. The playset is divided into two main sections spread across four levels, each teeming with serpentine details. Lady Slither rules from her throne room, where she can hatch her next evil scheme, while the working drawbridge can be unlocked using the Snake Staff. Defense is a key feature, with a repositionable harpoon blaster, a telescoping snake head turret that pivots and fires a projectile, and a weapons rack to arm the Snake Men. Functional play elements include a working elevator, a snake head periscope, a zipline, a ladder, capture devices, and an iron maiden. A hidden passage also provides an escape route from the snake-guarded hatchery, rounding out this venomous fortress.

Here is Lady Slither and the second unlock, the Priest Pythonus Origins figure, will be available once the campaign reaches 8,000 backers.

Tier 3 Unlock – Lady Slither’s Two-Headed Serpentine Steed, Chimera becomes available at 10,000 backers.