Wiki - Peerless
All the traditional peerless exist in Trammel on Legends of Sosaria. The Felucca versions are in the process of being rewritten into new ones, and other new ones are in development.
To summon a peerless, travel to it's location and collect the items required to activate the summoning altar. If someone is already facing the peerless then a message is sent to let players know. There is a ten minute delay after a peerless is slain before it can be summoned again. Should a single player attempt to reenter the area to face the peerless again within this time the peerless will not appear. This function is intentional and exists to hinder mass farming the peerless for it's drops.