Sandbar

Sandbar is a male Earth pony from Ponyville Sandbar enrolls in Twilight Sparkle's newly opened School of Friendship as a student, and Gallus is the first creature he meets. Along with most of the other students, Sandbar is hopeful about learning friendship and making new friends, but Twilight's strict adherence to the Equestria Education Association's guidelines causes the school courses to be dull and boring. He later cuts class with Gallus and other classmates Ocellus, Silverstream, Yona, and Smolder (joining them in hopes of keeping them out of trouble), and the six become good friends.

When Sandbar and his friends return to school for Friends and Family Day, they accidentally ruin the event and cause damage to the school, much to the ire of the EEA's Chancellor Neighsay. Neighsay perceives the fun and games as an attack orchestrated by non-pony creatures, leading the offended tribe leaders to pull their own students out of the school and Neighsay to shut the school down. Not wanting to say goodbye to each other, Sandbar and his friends go into hiding at the Castle of the Two Sisters, and Sandbar—the only pony in the group—delivers food and supplies for them from Ponyville.

Personality
Among the Young Six, Sandbar is portrayed as the easygoing "straight man" to counterbalance his friends' more eccentric personalities. He is also the most considerate and thoughtful among them, demonstrated when he gives Gallus a replacement quill during the School of Friendship song, defends Yona's love for her heritage, and agrees to cut class with his schoolmates in order to keep them out of trouble.

Magazines

 * My Little Pony Annual 2019 (Orchard Books)