OKAY sigh* I understand that the slave thing wasn't a good move, let me explain my reasoning and a few other things.
1. I wanted Enel to be different than just a goofy bad guy who gets he shit kicked. He's insane btw IDK if you guys knew, He was destroying a whole island full of people, granted they all escaped but he doesn't know that and he obliterated everyone on his home island along with the island himself. The manga makes it fun and makes him act all goofy and like an idiot so we don't think he's a psychopath. I wanted to make skypeia more dark because despite being all fluffy its more like a prison.
2. first of all let me make this clear. Zeus has the rumble fruit, ENEL'S ORIGINAL fruit I scrapped the idea of changing it but i never deleted the 'not a chapter*' that explained my thoughts so it's my fault for the confusion. ANYWAY Zeus has the rumble fruit, which happens to make him lightning himself, and while he can control lightning, Enel's fruit is the Raijin fruit, which if you look it up on google is the Japanese god of Thunder, lightning, storms and harvest (i'm not sure about the last one and i'm not looking it up to find out) meaning he has FULL CONTROL over ALL lightning that was my thought process through giving Enel his fruit.
3. I wanted Zeus to fight Luffy and the crew i don't really have a reason i just wanted that to happen (maybe i'm just crazy who knows?) (maybe for character growth? Even I don't know) but the turn around is fast and they make up in the end and NEVER mention it again eventually he forgets.
4. so a lot of people are complaining the Zeus is weak, remember though Enel doesn't know what Zeus move set is other than what he used on him and the move that Zeus used against Luffy was a copy of was Luffy did. Enel cant make Zeus do what he doesn't 'know' so that was in no way Zeus actual power you'll find out soon how strong he is. I am saying this with all seriousness Zeus is SUPER busted but most of the time he doesn't do anything, he's hiding his power until he needs to unleash it
5. Garp never taught him Haki. I'm saving that for TS so he has something to do instead of sitting around for 2 years doing absolutely nothing
IF these reasons still don't make you happy then i really don't know what to say except i'm sorry, I wrote a bad chapter. Enel's fruit could've been some earth fruit bullshit and Zeus would've been like 'oh no its ineffective' and Luffy would beat him id probably end up finishing skypeia in 1 chapter. Uhh that was the original plan to be honest and i thought this would be more interesting.
ANOTHER CHAPTER COMING OUT TODAY/TONIGHT