Feldon
The Potent Potable quest in Cobalt Scar, which required keeping 5 Othmir alive by using healing items on them (which had to be repeatedly picked up from an NPC) has stymied a number of players. For them, this one quest has completely bottlenecked/stopped their progress in the Cobalt Scar quest lines. I personally was able to do the quest, but only solo (if I was grouped, then I got credit for any Othmir that died on my groupmates’ watch too 🙁 ). Not everyone grew up playing Castlevania and Mario, so I can see how it would be tricky...