Will post more info up on him! i fell in love with Macabrecabra's overwatch au aquawatch, and was driven to create my own Original overwatch character into a merperson as well!!

Hes a mixture of a poisonous puffer-fish and octopus, but after a bad run in with poachers, he was found gutted and half dead, his poison sac removed, making it a death sentence for him to be sent back into the sea

they are called coral kings, because from what little information of these massive mers, is that they collect drifting coral to construct massive ecosystems that become their homes, and the homes to many other smaller poison fish. they "farm" the coral, and create complex towers, without causing to much stress to the organism.