Reinforced Barriers

Gadgeteer Engineering: 14th level When you cast a tech power while you have a barrier active, you can restore hit points to the barrier, provided it is within 30 feet of you. You restore a number of hit points equal to twice the power's level, or 1 hit point for an at-will power. This can't increase a barrier's hit points above its initial hit points. If you have multiple barriers active, you can divide these hit points between them as you see fit.

Granted by Gadgeteer Engineering at 14th level.