@stretch22's review mentions that Martyr offers great value, but a bit slowly. One way to accelerate that value is by pairing her with Hangar Bay. Even then she needs some help because the base 2 ATK isn't going to defeat a ton of minions. She's definitely got scope for a Voltron build, I think.
“Quickstrike is considered resolved when the subsequent attack initiates, not finishes. Quickstrike and Widow’s Bite are both responding to a minion entering play & engaging Black Widow, and Quickstrike is resolving first by having the minion initiate its attack, but Widow’s Bite is then able to resolve before all the steps of the attack are completed. And since the attack was initiated, the minion will still complete its attack even with Widow’s Bite’s stun, unless the 2 damage dealt to it defeats it.“ -Alex – June 15, 2023
Possibly to be addressed again in RRG 1.6
I made a deck with Spectrum revolving around this card. I took a bunch of allies that had Aerial: Falcon, Adam Warlock, (Spectrum has Blue Marvel). Then two Avengers with 3 Sky Cycles to give them Aerial and a ready. The first time I used this deck, I had Cassie Hawkeye (because she was cheap) and White Tiger. I later traded Hawkeye out for Vision because he can use the ready from Sky Cycle to his advantage or you can use Kaluu for his event tutor (Spectrum loves that). For flavor purposes, I ran Quinjet to get the higher costed allies out faster or when the time was right. People hate Quinjet but with my luck, I never have the high cost allies in my hand at the right time so they basically pay for themselves over time if I want. Team Training to go with that too makes everyone have an extra activation. If Adam Warlock is not on the field, Mighty Avengers can kick in. I had a bunch more to add but off the top of my head I don't remember what else was in it.
I played against a few villains that are known to have higher HP minions like Zola, Thanos, and Klaw. Honestly, it worked out really well. Since you don't have to exhaust any of the Aerial characters to deal the damage, in a certain sense, its basically a free attack activation for them. So if I had all 3 aerial allies on the field, if you include Spectrum, you can deal 3 damage to each enemy on top of whatever else you do that turn. I found it really fun, thematic, and pretty effective against these villains. I'm sure you can get good use out of this card if you build for it, however, the build will kind of revolve around fighting minions with higher hp than 2, so a lot of funky modular sets can be swapped in to try and brute force it into being useful.
All the reviews for this card so far are pretty negative but I don't think it is a bad card at all. I think it is a great card in a specific niche.
To get the best value out of this card you are looking for a high native THW (so you can get up to THW 5 with Surveillance Specialist and Heroic Intuition), easy access to readying (so you can make a basic thwart when you need to), and a low player count (so an all-rounder deck makes sense).
The decks I've published here on MarvelCDB so far to demonstrate this haven't set the world on fire but I'm still trying.
So overall I think this card deserves comparison with Fusillade or Clobber. It can deliver similar value with a little more set-up, reflecting the fact that it's a yellow card rather than a red one. Compared to Turn the Tide it is obviously not such good value but it does more damage and you can pretty much guarantee meeting the conditions to use it, so it is much more reliable when you actually need to clear a minion.
Not the best card, but a card with a place in the game.
I think Black Widow still holds up after all these years. There's an oft repeated complaint that "there's been very little Preparation cards released!", which is somewhat true, but not out of the ordinary compared to some other heroes. As of writing this July 2024, there's been 10 Preparation cards released, excluding her hero cards themselves. Iron Man hasn't received much Tech support either, with only 11 Tech cards released (excluding reprints and campaign cards). Nebula has received zero love with no new Technique cards at all. And that doesn't cover hero related traits that exist but were never expanded upon or don't do anything yet, like Gamma.
I wouldn't let the supposed lack of preparations stop you from playing Black Widow these days though. Grappling Hook is so good that it's worth player her just for that. Also, player side schemes sorta feel "preparation-y" with their concept, in the sense that you play them ahead of time, and they don't do anything right away. They have the added benefit of being usable for any hero. If you're playing for theme, Justice has always fit Black Widow very well, and Lay the Trap and Take Out the Guards can work well. She's one of the few heroes who can play Breaking and Entering, and since she loves flipping to alter-ego frequently anyway, why not include it?
If you haven't revisited her with some recent cards, I'd say give her a chance!