According to the wiki,

Damage +50%

 

Damage Reduction 50%

 

Duration 8 seconds

According to the wiki,

Damage +50%

Damage Reduction 50%

Duration 8 seconds

According to the wiki,

Damage +50%

Damage Reduction 50%

Speed +30%

Duration 8 seconds

As for whether her abilities can stack with other heroes, I have not been able to test this as I am having problems logging into Battle.Net currently. Will update this answer when I am able to get data.

According to the wiki,

Damage +50%

Damage Reduction 50%

Duration 8 seconds