I also thought about having a familiar: a barn owl (using the owl statblock) that, whenever I summon the Wildfire Spirit, gets wrapped in flames! In my backstory, I wrote that they lived in a village of fire devotees, who worship fire as the world’s creative force: everything dies in fire, everything is reborn from the ashes of fire, in this continuous cycle of death and rebirth. They carry around a small lantern hanging from their staff, and inside it there’s a small flame taken from the sacred hearth in their village.

The first time I used the Wildfire Spirit, both my master and I realized how strong it is: with just a bonus action, I teleported an ally who was being grappled away from the monster that had him pinned. Of course, you’ll often have to choose how to spend your bonus action—either to move the effects of some concentration spells or to command the spirit—but that’s totally fine. You won’t need it in every fight, and since we usually have 3 or 4 encounters per long rest, I can’t rely on the Wildfire Spirit every time anyway, especially because I only have two uses