Requiring Castrum Litore completion for the next Bozja area is a bad decision.

[SturmChurro]

Which is how it should be, because Castrum also offers other rewards as well.
2 runs of Castrum for a Relic seems like way too little to me.

That said we all know the HW FATE drops are way too good at 100%, it probably shouldn't be any more than 50%.

Unless they do that and nerf the droprate for HW FATEs, then any less wouldn't be enough to make Castrum rewarding in this sense. If the other rewards that Castrum offered were actually REWARDING maybe I could see your point. On it's own, as it is now, people don't want to do it.