Cass is stressed enough her words start slipping, even her sign language getting clumsier as she fights to translate her thoughts & feelings into something other people can describe. Duke takes the calls, talks to the cops, does any PR necessary. Duke tells them Cass had to take sleeping meds and go lay down, she’s so worried about Dick.
Meanwhile, completely unrelated, Batman is ripping apart every shady corner in town.
I think this one will be shorter, since I'm iterating on a canon costume rather than creating an identity from scratch.
I know I'm giving Dick his discowing colors (several artists have actually given them to the Flying Graysons over the years, to keep Dick's costume being inspired by them without him just running around Gotham in his performance costume. I think Robin should be the tribute rather than Nightwing, but I'm happy to steal that as an excuse to put Dick in the blue & gold.) Cass's Batman costume was basically designed in tandem with the Moonbeam suit, so the two should compliment eachother.
Cass's cape is jet black, but the underside has a yellow-to-black gradient (ombre) where it's bright up high & fades out towards the edge. I'd actually make that highly reflective, since as Moonbeam Cass learned to use light as a weapon, and it makes her look downright angelic when the cape flares out, like she has a golden sun caught under her cape.
(This is definitely inspired by the fic Loading & Aspect Ratio, whose use of colors makes me rabid. Read it, please.)
(Have a quick & messy bit of concept art I threw together from the "Mark of Cain" cover to show what this cape might look like. Ignore the rest of the suit, we're getting to it.)
Next, Batman is losing about a foot of height. Cass will be compensating for this with ears. Not the super-absurdly-long ears Batman sometimes has, but still big.
(Thanks to broosepayne for literally collecting these. Very handy.)
She'll also be wearing lift-boots. Not platforms, not heels, those both threaten to seriously twist your ankle. But Cass is used to running around in lifts as Black Bat, and it helps make up the difference. Based on my observations of her costumes over the years, Cass genuinely likes fitted knee-high boots. (Is it a "make it more feminine" sexist command from on high? Probably. But it's a consistent part of her design, and I'm using it.)
(Something like these, probably. Maybe with a more emphasized/rugged sole, like these.)
For the cowl itself, I think Cass would probably still stick to her mouthless look. So probably something like Batman 1,000,000's cowl:
...which, now that I'm looking at it, I love the detail of the cape-clasp. And the shoulder pads kinda work too? She needs to add some breadth/bulk to her build, and their almost pauldron-like look is a nice callback to her Moonbeam days. Cass does wear more traditional shoulderpads under the suit, and then these pauldrons over the cape. I'd make them matte black, just slightly lighter than the cape. The little golden clasp should be bat-shaped, obviously. (This detail probably gets ignored a lot of the time, but it lets her have a bat visible even with the cape closed.)
Solid black body suit (also seen in the 1,000,000 pics) but I do think Cass should have a bat-symbol on her chest. After consulting my favorite chart, I think a slightly stretched version of the 70s bat symbol with a perfect circle behind it would probably be best.
(Quickly thrown together in GIMP. I really, really like the way the gold outline turned out, even though I wasn't leaning towards just an outline when I started.)
I think her utility belt is black, but the pouches are yellow/gold.
(Okay, this is the best version I can find, but I do want to draw everyone's attention to this comprehensive breakdown of every bat-belt because it's very impressive.)
Finally, rather than gauntlets, Cass wears black gloves with a folded cuff. Kinda like the Zero Year purple gloves, but with a much thicker cuff. The top & bottom of the cuff has a gold trim, but I'm going back & forth on whether there's more details (like capped knuckles or wire-thin fingerstripes) or if they're just plain aside from that trim.
(Here's the two best pics of these type of gloves I could find.)
I'm actually really pleased with this look. It helps Cass bridge the gap between her Black Bat (Batgirl) look and Batman, compensating for the difference in build decently well (especially when you remember most people aren't going to see Batman for very long or very well.) The wing-shaped shoulderpads & touches of glittering gold add a hint of showmanship, which means both thematically & color-wise she'll look good standing next to Moonbeam!Dick. The gloves then bring it back down to earth, looking like slightly fancier work gloves, emphasizing utility over flair or combat. Personally, I think the gloves soften the whole look a little, helping to show this is an older, more mature Cass who has taken an apprentice of her own, and especially how much she's healed & grown since donning the stitched-up Black Bat (Batgirl) suit after Steph's death. I even got to bring back my idea of the Shadows wearing Moonbeam's circle to represent their connection, very specifically with Cass's golden ring, to show that Cass is once again part of a matched set---it's just that this time, Cass is the shadow to Dick's light.
