According to statistics a GM Mercy can achieve 6 rezzes in a whole average game, the same amount you need for the achievement. However, you would need to do that without dying a single time in the whole game, so unless you make a bargain with the other 11 players, yes, it’s impossible. About the unprising event’s achievement, I can’t remember how it was, so I can’t help you, but considering that bots have better aim and sight than a lot of players, I think that the uprising event will be incredibly more difficult, as Valkirie won’t help at all, and Resurrect won’t allow you to recover from a bad situation. If Reinhardt die, it will be game over, that simple.
We have already explained it a lot of times, you only need to read the forum. 1.0 had the same base as this current design, excepting an E ability. Before you could play engaging and keeping your teammates alive, something that you can see now in OWL. That’s how old Mercy was really played. Just add a few 2-3 man rezzes and that was the average old Mercy.
Why do we say this rework has been a failure?
1- It pretended to stop hide and rez. Now hide and rez is mandatory all the time, each 30 seconds and each time you use your ultimate. Mercy must hide now more than ever before. That can’t be called a success at all.
2- The rework goes against Mercy’s identity and core. Turning Resurrect into an E ability was a terrible mistake. It made her incredibly op at the beggining, but after all the nerfs, it only punish the Mercy player and encourages bad game (you can play suicidal knowing that you have an “undo button” each 30 seconds). Also, Mercy is supposed to be a mobile character. Her current kit slows her down. Try to explain us now how “slow down” fits with “mobile character”.
3- The rework turned Mercy from an unique, iconic and epic hero into a generic healbot. This one is simple. Valkirie is not unique at all, it’s redundant. Before the rework the voice line “Heroes never die!” was immediately recognized as a Mercy’s and Overwatch’s thing in and out of the game, and turned her into an icon of all the supports. Valkirie is just lower Pharah’s flight + higher Lucio’s amp it up + lower Orisa’s ult.
4- People want to have a challenging character. Before the rework you had to think all the time and mastering Mercy was really difficult despite playing her was easy. Nowadays, one of the complains is that Mercy’s skill floor and ceiling are exactly the same. Statistics give us credit here, as they show that a bronze Mercy only performs one successful rez less than a GM Mercy player. In addition, Valkirie removes all thinking about healing. You don’t need to think when to use it, nor who to target, you just hide, target the target in the middle of your team and hold M1/M2.
5- Valkirie is useless. Before I wasn’t too sure of this, but seeing statistics from OWL, it has become clear to me. Mercy has less win rate when she uses her ultimate than when she refuses to use it. Also, she is not able to counter anything, and she can’t save her teammates at all. Her win rate is the 3rd lowest in fights where she uses her ult against an enemy team that uses one ult.
6- Resurrect is just suicide, it destroys all your mobility and takes no skill. You have to think where and when to hide, but that’s all. It takes luck or skill from your teammates to babysit you, but not from you. You are only a burden for them. That’s not fun.
7- Toxicity has skyrocketed since the rework was made. I don’t think I need to explain this one, no one likes being yelled all the time and harassed in and out of the game, I guess. Before the rework this didn’t happen at the levels we have now.
8- Mercy’s current kit is extremely flat and redundant. If you think 1.0 was simply heal, rez and repeat (you are wrong about that anyway), now it’s only heal and repeat.
9- There is no reward in playing Mercy nowadays. Before you could earn epic plays and feel proud of yourself. Now the only way you can do that is playing Battle Mercy, and that’s not what she is supposed to do. She is a extreme risk vs very low reward now. Her in flames rate is the lowest of the game, that give us credit here.
What we want that will make Mercy balanced and fun? There are a lot of different opinions, but honestly, this design can be corrected easily just bringing back old rez with some tweaks or iterations and setting Valkirie as an E ability, because let’s be realistic, it is indeed an E ability nowadays, not an ultimate anymore.