Wildfire druid/ Scout rogue

So I have a character, who like I said is a wildfire druid scout rogue. I know this has almost zero combatal synergy beyond the idea of using the wildfire spirit to trigger sneak attacks. My main goal of this is to instead, be utility, with the druid spell list and the “haha, can’t catch me nerd” of rogues. The main problem I have is how many levels do I go into each, and what spells/feara would actually be good for this.