Echo of Sylvanas - End of Time

Echo of Sylvanas is one of the 5 bosses in the heroic dungeon End of Time which was added in the latest patch 4.3 she has 6 main ability's which where going to take a look at, she also as some nice mechanic's in her encounter.

Echo of Sylvanas Special ability's

Black Arrow - Sylvanas fires a black arrow to a random person dealing 55k - 64k damage a the player and any other player within 10 yards.

Blighted Arrows - Sylvanas shoots a arrow inflicting phyical damage.

Calling of the Highborn - when Sylvanas cast calling of the highborn she will become immune to all damage

Sacrifice - Sylvanas deals shadow damage to nearby enemys.

Shriek of the Highborn - She shriek with anguish dealing 67k - 82k damage to a enemy and decreasing there movement speed by 50% for 30 seconds

Unholy Shot - She fires a volley of arrows at a enemy for 27k - 32k damage and also hitting two nearby enemys.

Sylvanas also as a ability to raise ghouls Called Risen Ghoul - ghouls will spawn around sylvanas with a link between them you'll need to dps one ghoul down before it reaces sylvanas so that you can escape through the broken link.
Echo of sylvanas Loot

Other End of Time Bosses
Echo of Tyrande