Help with a Sensitive Issue

First, some quick background for context. I'm writing a tabletop RPG campaign with the hope of weaving a tale the players will keep with them for years to come. It's quite inspired by the Sentai style of television show (Power Rangers, Voltron, etc), as it's a format that adapts itself excellently to a tabletop game. The core idea is for each character to be a Knight Errant, tasked with protecting humanity from a demonic legion. Each knight will embody a particular knightly virtue, and each will have a demonic enemy that represents their respective antithesis. One of the virtues is Truth, and thus one enemy is the Lord of Lies.

So now we get to the problem: The Lord of Lies is a shape-shifter, manipulator, and plays a major part in starting the climax leading to the final boss. It was about a day after coming up with this that I realized there was a potential problem. Someone could interperet a body-morphing demon as me literally *demonizing transgender people*. And I want to avoid that interpretation, obviously. Is there a way I can ensure that the character doesn't come across as a jab at transgender people, or do I need to drop that plotline and go for another approach?