This is a very very simple method of gaining ~ 200-300 rep with Black Prince per min.
On the northeast side of the Isle of Shan'ze Dao in townlong steppes there is a mob called Shan'ze Illusionist. These mobs when aggro'd will routinely summon groups of 4 spirit fragments. These fragments upon despawn yield 11 rep each up to honored. If you tank the Illusionists the mobs will despawn on thier own w/o you attacking them at all. You just aggro the illusionist once and afk/heal. they spawn about 3 sets in 120 secs give or take. I was able to tank 2 Illusionists( 8 fragments ) very easily on a 450-460ilvl geared rdruid without ever dropping below 230k mana. # mobs took a little more healing and required defensive cd use to avoid blowing mana.
The Illusionists phase out and cease attacking when the fragments are up , the fragments only hit for about ~1500hp every other second or so each. The Illusionists however will melee for about 14k and cast a spell called arcane unmaking for ~40-50k ( once each ) during the few seconds when fragments aren't up.
The amount gained is an estimate based on 3 spawn cycles per 120 secs at 44 rep per illusionist per cycle.
Shan'ze Illusionist