Reflection Barrier is an upgrade unique to the Aegis Barrier unit. Although it only has one level, Reflection is an immensely useful upgrade. Not only does it effectively increase the maximum damage the Aegis Barrier can take, but it reflects enemy fire back at it's source. On bosses with rapid fire attacks or in the presence of highly concentrated fire, Reflection Barrier allows the Aegis Barrier to take on an offensive role.
Note: Certain Rare units can also be upgraded at a cost to have a Reflection Barrier e.g. the Arcane Wrath.
X% Damage Reduction.
Reflects enemy fire.