(Ex): At 13th level, as an immediate action, a tower shield specialist can reposition his tower shield to another facing, but he cannot use this ability to interrupt an attack. This ability replaces weapon training 3.
I was curious to how other players and GMs may interpret this ability?
I have a player who took total cover with his shield from a dragon while it was flying toward the party. On the Dragons turn, he did a fly by attack using his breath weapon. The player wanted to reposition at the moment just before the attack to get total cover. ( Cone attack) I mentioned the ability is specific about interrupting an attack. As a compromised I gave him +4 on his saving throw.
What does every one think of this ability and what is it good for if you cannot interrupt an attack? But if you can take total cover as an immediate action that is very powerful.