There’s still no word yet on the new release date for Battle of Legends: Monster Mayhem. While we wait for Konami to give us an update, we can go over the rest of the new support coming in this expansion.
New D/D Pendulum Monsters
D/D Scale Surveyor

Paving the way for the rest of the new D/D cards coming in Doom of Dimensions, D/D Scale Surveyor comes in as a pretty average combo extender.
The easiest line of play with Scale Surveyor is to bring it out with another D/D Pendulum monster like D/D Savant Kepler to go into one of the extra deck D/D monsters like Wave King Caesar or Abyss King Gilgamesh.
Alternatively, you can take advantage of Scale Surveyor’s ability to manipulate its own level for some generic rank 4 XYZ or Synchro monsters. The latter can be done via D/D Orthos.
As far as utilitarian effects go, Scale Surveyor is pretty niche. Its Pendulum effect could potentially cause havoc to the opponent’s Pendulum zones due to the lack of targeting parameters.
For its ally bounce, it’s even more niche. Most of the D/D monster effects have a once-per-turn clause on them, so any effect that activates on a summon can’t be abused.
Scale Surveyor may offer some versatility, though. Assuming you don’t need the body that a D/D Pendulum monster provides, you could bounce the said monster back to hand for its Pendulum effect.
If push comes to shove, Scale Surveyor has a pretty high Pendulum scale. Most of the main deck D/D monsters tend to have a Level of 8 or below. So, at the very least, Scale Surveyor can allow a pretty wide range of Pendulum summons.
It wouldn’t be the first choice for deck building, but it still has something to offer for this archetype.
D/D Extra Surveyor

This card is probably even more niche than Scale Surveyor. While its monster effect is admittedly passable, the rest of its package would only find a home if a player knows for sure they’d be running into a lot of Pendulum-focused decks.
But, to be honest, the D/D archetype thrives more with cards that can pitch themselves into the graveyard for their effects. By that standard, Extra Surveyor can go a long way to help a player wade through some hand traps or board removal.
It probably won’t offer much else outside of its D/D monster recursion, but sometimes simplicity is fine in a game of Yu-Gi-Oh!
D/D Count Surveyor

This D/D Pendulum differentiates from the aforementioned cards by being an actual combo starter if the situation calls for it.
This self-special summon of Count Surveyor can pull double duty if the card you’re pitching has a graveyard effect like D/D Necro Slime.
From there, a D/D player can go through the standard lines of extra deck plays should they follow up with a D/D Savant Kepler or a D/D Savant Copernicus
As for its Pendulum effect, it could be used as a form of board breaking. Targeting non-destruction and non-banishment is probably one of the strongest forms of removal.
It’s a pretty niche option if your opponent is running a deck that shares an archetype or attribute, but you have to make sure you have another way of getting around the behemoth you’d inevitably end up making.
By the looks of things, Count Surveyor’s attack or defense gain shares the same properties as the Serket monsters employed by Odion decks. Meaning that there’s a pretty good chance that the stat modifications won’t go away at the end of the turn.
New Dragonmaid Support
Dragonmaid Stern (Dragonmaid Cehrmba)

The long-missing half of Chamber Dragonmaid is finally making its way to the Trading Card Game (TCG).
Dragonmaid Cehrmba gives an option to the archetype’s biggest weak point, banishment recursion, and this on top of a self-pitching package.
Of course, it’s susceptible to cards like Called by the Grave, Dimension Shifter, or anything that can get it away from its intended destination. Just having the option available in-house does wonders for consistency, however, and the ability to play through other forms of disruption.
As per the archetype’s usual design, Cehrmba follows the same principles as the other large Dragonmaid monsters. It can tag-out to its humanoid form.
Just like Chamber Dragonmaid, which can tag-in any of the big bodies of the archetype, Cehrmba can do the same and select any humanoid Dragonmaids.
This makes Cehrmba an excellent pivot point to any Dragonmaid extender you may need.
Unfortunately, summoning Cehrmba without using the in-archetype spell/trap cards would mean that Chamber Dragonmaid would be a natural choke point that the opponent will keep an eye out for.
It’s not the end of the world considering the consistency tools Dragonmaids already possesses, but it is still something to take note of.
Lady’s Dragonmaid

This is the extender this archetype was in desperate need of. Lady’s Dragonmaid allows the archetype to launch into one-card combos via Parlor, Kitchen, or Chamber Dragonmaid.
It’s too easy for the Dragonmaids to pitch a card into the graveyard to allow a path to contact fuse this Fusion monster out, and once Lady’s Dragonmaid hits the field, it can further play into another combo due to its special summon package.
Decks can easily splash in a Fiendsmith package by turning the bodies summoned by Lady’s Dragonmaid into Moon of the Closed Heaven.
There’s also great compatibility with Kashtira Unicorn and Kashtira Birth for even more interruption while preserving the normal summon needed for the Dragonmaids.
The value doesn’t end there, though. The moment your opponent shifts into their Standby phase, Lady’s Dragonmaid can turn the resources in the graveyard or banishment into another Dragon Fusion.
In most cases, a player would bring out Dragonmaid Sheou for its omni-negate as well as extra body summon. If you happen to still have Dragonmaid Cehrmba available, then that’s just an added layer of protection for Dragon Fusion monsters.
If Cehrmba isn’t a viable target for Sheou, then any of the other Dragonmaids can be brought out for whatever purpose you may need.
Battles of Legend: Monster Mayhem Shine with New Gem-Knight Support