I play the 30-39 BG's as a Goblin Engineer Druid (280ish Engineer ATM)
I've lots of trinkets which I change after use in the BG
From a pet bomb to a Dragonling, then theres mortars, bombs and the gnomish protection belt (cannot make my self but can use) and the invis trinket, goblin rocket boots and helm (30 second stun)
Lots of fun things to use and laugh at.
Fun and they might save your bacon once or twice in 1 on 1's