A Mesmer's Burden

Lady Althea needs you to put down a rogue bull west-southwest of the theatre. She gives you the following skills to do so:
 * Conjure Phantasm
 * Imagined Burden
 * Ether Feast

Walk to the rogue bull. It is level 5, and your physical attacks will do little damage to it. However, because Mesmer skills do damage without respect to armor, you should be able to easily take it down. Use Conjure Phantasm to hurt the bull. If you get injured yourself, use Imagined Burden and run away to heal. You should soon make short work of the beast.

When you finish, return to Lady Althea to receive:
 * 250 Experience