I know what all the replies will say already; that the arcade isn’t serious, that Mystery Heroes is a casual mode, etc. But I have no shame in admitting I’m an awful player who will never “git gud” or whatever. I’m simply not a skilled enough player to play Competitive, and so I stick to the Arcade and Quick Play rather than ruin the SR of strangers. Mystery Heroes is the one and only mode that is ALWAYS there in the Arcade since it is never on a rotation. That means it’s the one I tend to play most often since I want the weekly loot boxes for arcade mode wins, so I have roughly 160 hours played of Mystery Heroes total.
There is nothing more anger-inducing than the fact that No Limits is enabled in this mode, meaning it’s possible to get two or more of the same hero on a team comp. Remember at launch how the developers quickly learned that having no limits on absolutely breaks the game and makes it incredibly un-enjoyable (despite their initial steadfast refusal to change it)? That is Mystery Heroes still, three years in.
Having two of any character in a team comp destroys the balance of the game, which is a big part of why the PTR doesn’t give the most actionable information as far as balancing characters is concerned. No Limits is an already existing mode that’s in place for people who want to mess around with duplicate heroes on a team comp, and I say that it should be the ONLY mode where people are allowed to do that, to give it a unique novelty.
This is a trivial setting for Blizzard to change, since in our Custom Game settings we can select “Mystery Heroes” as a preset and then change “Hero Limit” from “Off” to something like “1 per team.” This alone would reduce the frustration level of this mode immensely. Mystery Heroes is already one giant race to see who can get characters that require specific counters such as Torbjorn first, so once you have to deal with one or more Torbjorns/Bastions/Brigittes etc (which is to say, in every game of Mystery Heroes) when it’s a random chance of getting a shield tank or a healer your day is pretty much ruined.
I’m pretty sure that no change will ever happen to Mystery Heroes because I posted a thing, but maybe they could add a Mystery Heroes variant where there IS hero limit enabled, the way you can do in the custom mode setup, and see what players think of it?