I don't know if it is the client that calculates and shows wrong values or if it is the server that sends wrong information but I'll post it here. Whenever I cast oakshell on myself I open the spell effects window to see the power and the duration. The duration shown is usually wrong (shorter) than it really is. Once the timer reaches 0 it keeps counting down (until -59 I think but I am not sure) and oakshell still affects me (improved armor and increased difficulty if I try recasting it). This continues until I receive the event log telling me that I am "no longer affected by Oakshell". example of cast: [23:55:45] You now have thick, strong skin. 89.32 Thornshell and it appeared to have a duration of 29 minutes and 30 seconds right after I casted it. [00:34:05] You are no longer affected by Thornshell. so the real duration was 38 minutes and 20 seconds