"Absolute power corrupts absolutely." -AJ.
The trick to the RP when contending with the idea of a "villain" natured character is the natural PVP-esque dynamic that the game embodies, so unfortunately unless you are at the top of the food chain, you are likely to not seem like such a great villain.
Thus introduces "Storyboard Missions"! With this modern innovative system and design, you too can tell your story from the perspective of the hierarchical pinnacle of all things heroic or all things villainy. For the low, low price of "don't use AI to write it for you," the depth of storytelling that you can achieve with minimal investment is staggering. Want to lay waste to a tribe? Open season. Feel exceptionally ambitious and want to rob a caravan of traveling merchants? Better catch up! How about the abduction of a fair maiden away from her home to issue demands to her family for the benefit of yourself? No Romeo to contend with here!
Disclaimer: All scenarios are purely constructed of NPCs not including yourself. Said NPCs are not allowed to be consequential or influential in the grand scheme of the world outside the telling of your own story. All NPCs must not share a likeness or familiarity to any other known players or NPCs. Violation of this disclaimer may result in side effects such as but not limited to: Failing of said mission(s), being banned from submitting future missions for a period of time, becoming a walking target for the "top of the food chain" villains talked about previously. Staff of animebase RP LLC reserves no liability for any and all unfortunate fates that may await you by taking on the road of a villain. Consult your doctor before doing so.