Ocean Crawler/Siren faction

So this would be a Ocean Crawler/Siren faction it would be similar to the order of souls but the two voyages introduced would be 1. A letter and number like (G5 or J9) where some sirens would be spotted and if you took them down you would get 1-4 mermaid gems and the second voyage would be a island where ocean Crawlers would be spotted and if you took them down you would get 1-5 Ocean Crawlers gems. The emissary would rise if you did one of these voyages or by finding random mermaid/Ocean Crawler gems from random encounters with sirens or ocean Crawlers and you could also sell coral loot to this faction if you wanted a third voyage a third voyage could see you having to go to a shrine or Treasury (Nearby) and grab a breath of the sea but you would need to fight 2 waves of ocean Crawlers/Coral skeletons to get the breath of the sea.