Q2: I'm looking for a creature that will be able to "pester" a 5th level party. By pester I mean a creature that has abilities and powers that allow it to pop in and out, make fun of the PCs, grab a loose item, but always be able to evade the groups attacks. Not something that would be used to TPK but one that could infuriate the party and just always remain out of reach. (I'm not looking to harm the party outright, just need a creature for a specific encounter.)