Valk is essentially just the devs trying to make something out of an ultimate they originally removed from the game. They’re trying to make Mercy’s alpha ult into something worthwhile and failing. They initially made Valk far too powerful to make it engaging - the trade off for that was the moth meta.
Then they started to nerf parts of her kit to bring her back to being balanced, but because Valk removes many of Mercy’s weaknesses, it’s hard to balance it. You can’t put a boulder on one side of a scale and then try to balance it out with feathers. It’s going to take a metric crap ton of feathers to ever equalize the scales - or in this case, nerfs. Which is why we’re here now.
Mercy’s problem since release has been like two sides of a coin:
With Mercy 1.0, much of her power as a hero was locked into her ult. Her kit was exceptionally simple. She had little utility outside of her mobility. She was an objectively weak hero, but she had an incredibly powerful ult. The problem was that the trade offs for pulling off that ult (suicide & rez) were so off-kilter that she was even eclipsed by off healers at the time, and later even by Ana when Ana was considered underpowered. Their problem then was that they struggled to balance Mercy when so much of her power was locked in one place. Even tiny adjustments had significant consequences on the game - like the invulnerability.
Meanwhile, Mercy 2.0 is on the complete opposite side of the spectrum. Her power is so spread out over the different aspects of her kit that nerfing any part of it leads to those individual parts lose their “engagement” or “fun”. Her rez on E is on a static cooldown, but slows her to a crawl and takes two seconds to cast (which goes against what the devs have said about wanting people to see Mercy as such a mobile hero, “zipping across the battlefield”). Her Valk allows chain healing and damage boost and infinite ammo, but she can only use one of those aspects at a time, and especially with her recent healing nerf, she now has less options in using it due to how little freedom she has to switch off from healing. They could continually nerf different parts of her kit to try to balance her, as they’ve been doing, but at the expense of continually watering her gameplay down and taking away the very “engagement” they wanted to encourage with the rework to begin with. (Like for example, the fact that Mass Rez was removed because it “encouraged Mercy’s to hide and/or stop healing and let their team die” while current rez literally… forces Mercy to hide/take cover and stop healing. Weird.)
At this point, I don’t know what Valk is trying to be. It certainly has its uses. It’s good for engagement. The chain damage boost is certainly useful as hell - when you have the freedom to do it, when your team isn’t taking damage and in danger of dying, when you don’t have to toggle off damage to start healing instead, when you don’t need to rez someone to keep up momentum, etc. It can be used to hunt a pesky sniper, which is fun - but also goes against that whole “encourages Mercy to stop healing” thing again. There are certainly multiple ways to get use out of Valk, but is it necessarily what the devs intended for it? Is Valk, in its current state, what the devs wanted it to be? Is it as engaging for that “midfight potential” as they originally intended it, or did the initial OP status of the rework and the subsequent nerfs to counteract it effectively ruin what the devs envisioned Valk to be?
I’m not saying Valk didn’t need to be nerfed, of course. I, as well as many other Mercy players, knew that Valk was going to be monstrously OP as soon as it hit the PTR. It definitely deserved those nerfs. It definitely did too much. It definitely needed watered down. But if the devs had put that version of Valk on the PTR originally, was that not what they originally intended Valk to be like? They wanted this rework to increase Mercy’s midfight potential. They wanted Mercy’s power to be more spread over the rest of her kit. They wanted Mercy to be the “go to healer”, the pure healer. They wanted Mercy to be engaged in the fight. They wanted Mercy’s to stop hiding to rez.
They wanted a lot of things for this rework. But did any of them really come to fruition? Or did they release something hilariously broken, try desperately to fix it, and come away with something far worse than what they had originally tried to repair? It’s kind of sad to think about.
/rantover