Nymris

Nymris, Oona's Trickster is a faerie knight from Lorwyn–Shadowmoor

History
Nymris leads a clique of faeries on the plane of Lorwyn. Fiercely loyal to Queen Oona, he has accepted a crucial mission. It is his responsibility to irritate and exhaust any humanoid he comes across. The more exasperated the humanoid becomes, the deeper they will sleep when exposed to Nymris's magic. Deeper sleep produces more potent dreams for the clique to harvest, and those dreams are safely delivered to Oona for mysterious purposes.