Hero players rarely interfere? They literately have 3 canadia and you simply can't play against them because they flip your monsters down anytime they want
Most decks are running canadia at 2 or 3 anyway, heros goal is to OTK you Early or stall with decider till they get mask change but Yubel on the other hand fucos on destroying ur monsters, clear ur backrows every turn and mill with warm worm if you try to play the stall game, yubel is like LC0 bricky sometimes but highly oppressive when it works, unless u run specific counters to yubel you ll lose
I use NK and I'm fine with most Yubel variants. They're forced to summon Incarnate early, and by the time it's their 2nd turn after they baited with worms, fire kings, etc. I destroy the ultimate form in their own turn. If they have phoenix on graveyard it will be insta-killed turn after turn, more so if it hits Wild Tornadoes. Meanwhile, two phoenixes is very dangerous, but it's unlikely with NK.
Decks that counter yubel basically means a lot destruction effects so probably fur hire. But you can just tech in some ultimate providence or offerings to the doomed instead
They're tier 1 for one reason, what do you expect to see on DLv 19? People want to get to DLv 20 easily so they use the strongest decks, people who complain about masked heros, it's because they don't have them. I don't have them but my Knoble Knight can deal with them easily, and I enjoy how people make misplays against knoble Knight.