A few Fairy Aura questions?

Question

• What is the damage boost given by Fairy Aura?
• Does it affect the enemy's Pokemon as well?

Answer 1

Fairy Aura affects all fairy type moves, regardless of who uses them.

As far as the boost, it will roughly be around 20-30%. People have calculated Dark Aura to be around 30% boost to dark type moves and it is assumed that Fairy Aura will be somewhat equal.

Source: http://www.smogon.com/forums/threads/xerneas.3489977/

Answer 2

It does affect all Pokemon
i am not sure about the boost
Source experaince and http://pokemondb.net/ability/fairy-aura