Thrall, The Farseer is the is the new hero which was added in Dota 6.68. You can read DotA Thrall, The Farseer Guide, Skill Descriptions, Game-play strategy here.
Movement Speed: 300
Hero Type: Intelligence
Starting Armor: 1
Starting Damage: 49-53
Agility: 15 + 1.4
Strength: 19 + 1.9
Intelligence: 22 + 2.5
Thrall curses the target to be struck by thunder 3 times over 4 seconds. Foes nearby the victim will also be damaged.
Damage per strike: 50/75/100/125
Secondary AOE: 200
Ability Code: A1TV
Thrall forces the target back to it's previous position through a psionic rift. Sends the unit to where it was 4 seconds ago.
Cast Range: 600/1000/1400/1800
Note: The glimpse effect has some travel time, the target isn't instantly moved back.
Credit: Based on Glipse from http://www.playdota.com/forums/242499/int-sent-sephael-spirit-arbiter/
Ability Code: A1SW
Thrall summons a circular barrier of kinetic energy, keeping enemies from walking in or out of it. The barrier has an aoe of 300.
Has a 1.2 second cast delay before the field is fully formed.
Duration: 2.5/3/3.5/4 seconds
Cast Range: 900
Ability Code: A1SU
Creates an area of electric instability which damages and silences enemies in the area. The effect starts off weak and then intensifies over 5 seconds, dealing increasing amounts of damage, before disappearing.
Final DPS: 170/210/250
Note: The damage starts off slow and ramps up continuously until it reaches the max
Ability Code: A1U6