Zephyr’s Focus (Air Magic trait II)
Cone of Cold (Dagger Water skill #2)
Zephyr’s Focus grants an extra 100% endurance regeneration while channeling a skill. When channeling begins, a buff is granted with a 10 second duration. For other channeled skills (Drake’s Breath, Ether Renewal, Arc Lightning, Churning Earth, Meteor Shower) the buff is removed at the end of the channel regardless of any remaining duration. But with Cone of Cold the buff is not removed, resulting in an extra 7+ seconds of double endurance.