i think seahorse is a really cool guy. eh kills whaels and doesn't afraid of most things.
Eridan is a guy who has a scarf and a cape and he parade around in a scarf and a cape all the time like it was no thing. Godspeed, scarpcafe man.
Eridan is the only moirail in existance who is not dead or in a coma. Whether or not he is an any good moirail is up for debate.
For some reason nobody seems to use his scarf as a strangling mechanism in order to make him dead. I guess nobody sat down and thought about it for long enough.
He is completely in denial about magic being a thing, which makes him in denial about the fact that within him is actual magical power, instead attributing all the power to the wand, which is just an amplifier, and gives himself none of the credit. He doesn't believe in anything, and he especially doesn't believe in himself.
It is quite possible that he is actually made of many seahorses.
WE TEND TO SEE THAT AS A PERK THOUGH, LOOK
SOME SAY YOU'RE TROUBLED, BOY
JUST BECAUSE YOU LIKE TO DESTROY
ALL THE THINGS THAT BRING THE IDIOTS JOY, WELL
WHAT'S WRONG WITH A LITTLE DESTRUCTION
YOU'VE GOT RARE APPEAL
WITH CONSCIENCE ATROPHIED
'CAUSE YOU DONT NEED TO WASTE ANY TIME