Elemental Blockade is a Weapon Skill, found in the Destruction Staff skill line.
Base Skill: Wall of Elements
|Slam your staff down to create an elemental barrier in front of you, dealing 281 Magic Damage to enemies in the target area every 1 second. Blockade of Fire deals additional damage to Burning enemies. Blockade of Frost costs more but snares and reduces armor against Chilled enemies and grants damage shields. Blockade of Storms sets Concussed enemies Off Balance.|
Elemental Blockade is a morph of the Wall of Elements base skill. The other morph is Unstable Wall of Elements.