Lightening staffs hit more target now for alot more damage, i think we will see alot of Lightening Staff mages in keep defense. Cold Staffs snare and give you a damage shield, so i think the Open Field mage will really like this.

Destruction Staff
Destructive Touch
Frost Touch and its morphs will no longer apply a half-second stun to the target.
Normalized the projectile’s travel speeds.
Clarified the tooltips for this ability.
Flame Touch: This ability will now knock back your enemy instead of stunning them.
Shock Touch: Removed the area of effect damage, and added a 2.5 second stun. The impact effects have been updated to reflect these changes.
Elemental Blockade (Wall of Elements morph): Increased the duration to 8 seconds.
Elemental Force (passive)
Changed this ability’s bonus to be multiplicative instead of additive.
Increased the bonuses received from this passive to 50% and 100%.
Updated the tooltip wording so it no longer mentions “spells”; this passive has always increased the chance for all attacks (including weapon enchants).
Flame Clench (Destructive Touch morph)
Removed the stun from this ability.
Added an increased damage over time damage.
Heavy Attack: Reduced the damage of Fire and Frost heavy staff attacks by 3.84%; this will make the damage per second consistent with other weapons.
Shock Clench (Destructive Touch morph): Added an area of effect damage that applies near the target.
Shock Reach (Destructive Touch morph): Removed the area of effect damage from this ability, and added a 2.5 second stun. The impact effects have been updated to reflect these changes.
Tri Focus (passive):
The Lightning Staff bonus attack now hits up to 6 targets instead of 2 targets.
Heavy Frost attacks now grant a damage shield for 4/8% of your maximum health.
Heavy Shock attacks now deal 50/100% of the final pulse damage to nearby enemies with a maximum of 6 targets, using a radius falloff.
Reduced the heavy attack bonus from heavy fire attacks to 12% from 15%.
Wall of Elements
Increased the base duration of this ability to 6 seconds from 4 seconds.
Fixed an issue where this ability didn’t have a target cap.
Wall of Fire: This ability will now deal 20% more damage against burning targets.
Wall of Frost: Chilled enemies will now be immobilized for 4 seconds.