K first off.. I think this was a great event idea!
However, just want to point out one thing. This has about the same basic mechanics of the Smith and Halloween events
IOW, enter an area or run mish, get three NPC's one level higher than you, fight them.
Notice that nobody has ever complained that the Zombies or Smiths are too hard to take one on one. Yet trying to go Mano a Mano against similarly leveled Kunoichi's yields instant death.
Does anyone else see how this confirms just how overpowered the Knife Tree is? Somebody above listed a team of FOUR healers to two attackers to handle this, and they are NPC's !!
Just saying...