A beautiful flower with poisoned thorns.

The Seelie Court were those fairies who would seek help from humans, warn those who have accidentally offended them, and return human kindness with favors of their own.
Still, a fae belonging to this court would avenge insults and could be prone to mischief. However, please be aware that Seelie and Unseelie is not a rigid fey binary. Some start as one and migrate to another over time and vice versa.