Magerealm features epic World Bosses that are accessible to players once they reach a certain level (starting at level 39).
But these bosses are far too strong for individual players to take down. You will need to collaborate with fellow mages on your server if you hope to take them down. While every player will be rewarded for participating in the defeat of a World Boss, the player who can get the killing blow on the boss will receive the highest reward. While it would be advantageous to wait until a boss is nearly defeated to take your shot, be sure not to wait too long and miss the event altogether.
Next: Crucible of Angel