Phy def buff are 45 sec only. if you a warrior use heavy armor. (u can use prot also, but forget garment if you are full str)
I hope you use bard only for buff yourself, otherwise your bard will sucks alot.
Btw, friendly suggestion

dont do 1h/bard, grinding at higher lvl i boring and slow.
And no one likes 1h/cler in pt's