How much damage does the Fallen Champion from Genzaniku do?

I've found a very interesting site that gives information about all of the summoned monsters/skeletons/cows:

  • The Fallen Champion lasts for 15 seconds or until killed and can be re-summoned immediately.
  • Deals around 100% weapon damage per swing.
  • Can rarely deal a power attack which deals 250% average weapon damage.
  • As of Patch 2.0.4 (4-08-2014), the survivability of the Fallen Champion was greatly increased.

Source.

I'm unsure where they get their information from,but it seems pretty accurate.