Behind the Shield
This skill activates effects on the Warden based on their specialization:
This skill is one of the Warden's three gambit builders. It adds a Shield to the gambit display. A sequence of gambit builders can be executed as a gambit, a more powerful skill that may provide additional effects. Although each gambit is unique, gambits that start with a Shield builder tend to focus on buffing or healing the Warden.
Although the tooltip states that this skill does Ranged damage, it in fact does damage based on the type of shield-spike currently applied.