Lv 1: 30 mana, 11 sec. cool-down, 6m area
3 sec. root, 6 target damage per sec.
Lv 2: 30 mana, 11 sec. cool-down, 8m area
3 sec. root, 6 target damage per sec.
Lv 3: 30 mana, 11 sec. cool-down, 8m area
3 sec. root, 9 target damage per sec.
Lv 4: 30 mana, 11 sec. cool-down, 10m area
3 sec. root, 9 target damage per sec.
Lv 5: 30 mana, 11 sec. cool-down, 10m area
3 sec. root, 12 target damage per sec.
Lv 6: 30 mana, 11 sec. cool-down, 10m area
3 sec. root, 16 target damage per sec.
Here are the following dodge% reductions unspecified by the skill descriptions (thanks Skimmey for this useful piece of information):
Lv 6: -20% dodge
Note that this skill also does damage (not listed in the descriptions) similar to your damage range.