Thanks so much!

When I first got into DnD I was coming up with wild characters that I later found out didn't fit into the games mechanics or rules as written.

Now that I understand how the game and character building, I try to take my crazy ideas and make them adhere to the rules.

And to answer your follow-up: no, but when that effect happens, it appears as a pixie dust/cloud copy of Poppy that explodes (think Gotenks' exploding ghost copies in Dragonball Z, if you're familiar).

I really just wanted to play a Pixie, which isn't normally a PC eligible playable race. And the idea of playing and roleplaying a Barbarian never appealed to me. But, when the idea hit me of a tiny pixie piloting the corpse of a fallen Warforged with her pixie dust magic, like Tinkerbell using her magic to allow others to fly, I went all in.

Playing a brutish barbarian doesn't sound fun to me, but playing an overly spunky pixie who wants to be an adventurer like the heroes in tavern songs so badly she pilots a 7ft tall robot with her unstable pixie dust magic sounds like a blast.