DPxDC How to Train Your Chaos
Okay, so, Tiny Creature, but it's not Danny, it's Ellie. And she fell out from a natural portal, which are Lazarus Pits in DC dimension. And League picked her up.
Now, Danny might try fighting out of the situation or communicating with someone, or whatever else his anxious teenage ass is capable of doing while he is locked in a Tiny Creature state. Ellie, though? She would take the opportunity to create as much chaos as she could. After all, if she decides she wants to go back, she can always call for Danny, or plain phase through the walls, and jump back into the natural portal since it seems pretty stationary.
But, as a free spirit with a knack for exploring and mischief, she would never miss a chance to mess with a whole base of assassins!
After a month of continuous bullshit caused by the little pit demon (and some new gray hairs), Ra's decides he's had enough. This creature is useless and troubling. How does he get rid of it?
Wait, Damian loves pets.
Cue Damian arriving in Nanda Parbat or wherever Ellie appeared, immediately falling in love with the new weird pit-demon-lizard-cat, spending a week trying to get on its friendly side while Ellie is just having fun making him run around the place, but eventually she agrees to go with Damian to Gotham - hey, it's a new place and a lot of new people to terrorize, the assassins are getting used to her antics already! - and enthusiasticly blending in with the Bats' weirdness.
Platonic or romantic doesn't matter, just imagine Damian jumping down from the roof in front of some goon, sword in hand:
Damian: I do not want to waste my time on this, even my cat could deal with you
Goon: excuse me, I know you're, like,The Stabby Robin, but a cat-
Ellie, a Tiny Creature made of nightmares, her definitely human smile filled with sharp teeth, in a fake cat-voice: mrrr-meow?
Goon: ..........I changed my mind, how about I just head to the nearest police station, bye
