Lady Rainicorn

Lady Rainicorn is a female Rainicorn and is Princess Bubblegum's royal steed, best friend, and companion. She is also Jake's girlfriend, and sometimes follows Finn and Jake on their adventures. She only speaks Korean, speaking English only when equipped with a universal translator device (however, she is shown to have spoken a bit of English in "Lady & Peebles" "I am pregnant!"). Princess Bubblegum, Lady's children, Jake, and Root Beer Guy are the only other beings in the Land of Ooo, besides Lady's parents, that are shown to understand Korean. Finn directly refers to the language she speaks as Korean in "The Pit." In "Lady & Peebles," Lady revealed that she is pregnant; this was confirmed by Princess Bubblegum. In "Jake the Dad," she becomes a mother to five rainbow puppies.

Abilities

Lady has the ability to fly, phase through matter and can use her horn to change the color of anything she wants. In the episode "My Two Favorite People," Lady Rainicorn explains to Finn that she can fly because her body can intercept beams of reflected light from the sun and "dance around" on them. In the same episode, she is shown to live in a stable in the Cotton Candy Forest. Like her parents, she can fire a chromatic light beam from her horn, which seemingly hurts. Also, Lady can stretch longer or shorter as you can see when she lands. She may have limited Stretchy Powers. It is revealed in "The Creeps" that she can phase through walls and carry people while phasing. People can phase through her body, also shown in "The Creeps." She can also play the viola, like her partner Jake.

Personality and traits

Lady is laid-back and likes to interact with Jake and Princess Bubblegum. She is considered Princess Bubblegum's companion, like Jake is Finn's companion. She does not speak Korean in the original short; she only makes soft cooing sounds (or, near the beginning, hysterical screaming coos). Jake understands what she says when she talks to him, and she believes she is smarter than Jake. She may also have a fondness for power rings, which she wears by phasing them into her body since she lacks fingers. Jake calls her "The Rowdy Queen," saying that she can do anything.

Lady, unlike both of her parents, does not wear a universal translator device. Despite not speaking English, she can understand it, as evidenced by the fact that all the other characters primarily speak English when talking to her and she is able to understand them.