Wasabi Pea was the leader of the band of mercenaries (The Wild 15) that killed Comet Tail in the Department of Augury production plant outside of Ponyville. She was a unicorn mare described as being "short, thin, and tattooed threateningly about the face". At the arrival of Lozenge and company, she is trapped as a chained memory forced to relive the battle with Comet Tail (and thus her own death) every night. Her memory temporarily takes possession of Lozenge, granting her the mercenary's ineffable marksmanship for a short time.
She is repeatedly lauded as being an unparalleled sniper, and stories of her prowess endure into present day.