Lucio is literally an extra diver, and antiheal is just as good as discord. And lucio does more for the dive heroes than mercy does because he has more utility. While Ana does more for the dive heroes than zen because of nano and her healing.
The comp just has higher peak output
Also it was meta when they balanced mercy to 50 and before brig took over the whole game
He’s power crept as hell… but is still useless because of the other DPS that are just far more power crept than he is. Widow/Hanzo also make 90% of the DPS roster useless.
Which is why anti heal does the same thing as discord but can hit the whole team getting more value out of cleave. They die the same speed with either one, but antiheal is aoe and can boost your own healing
See how Mercy’s pick rate in GM here is quite low?
This is before the Moth Meta. Mercy’s rework came later.
Here is what it looked like in mid moth…
Mercy is now the most picked hero in GM. (This is after a bunch of Mercy nerfs as well, she wasn’t balanced yet)
Zen is still picked over Ana, but it is much much closer here.
Once she if nerfed, and falls out of the Meta, then Zen takes over again, until Brig shows up and the entire meta vanishes out of existance. A couple of months later, Goats starts up, and the rest is, as they say, history.
Lucio of course stays in the mix, but, as a way to help the tanks engage, and get focus on people, rather than as an escape for the other support.
Actually multifreeze was something from after Dive meta, during the Moth meta.
And with the upcoming game focusing on a bunch of close range brawls, if you aren’t capable of dealing with more than 1 enemy are a time, the hero is gonna be dumpster tier.