The tooltip of Divine Aegis reads: "Critical heals and all heals from Prayer of Healing create a protective shield on the target, absorbing 30% of the amount healed."
However, when I get a critical heal or heal with PoH, my DA gives a much bigger shield. A greater heal crit of 54142 gave a 22079 DA shield, while 30% of 54142 = 16243. I made sure I had no previous DA left when that happened.
Is this a bug or did it get buffed lately? Or am I missing something else here?