Silkroad gold players don't usually need any buffs and together.
Think of your party like links in chain mail, interlocking and becoming greater than the sum of their parts. The wizards have low defense but high attack. Use your tanks to boost their defenses with buffs. 'Protect' transfers aggro from the target to the tank, 'Fences' reduce damage in general and 'Quota' gives the target's damage to the tank. These are the buffs that keep you alive.Tanks are another class that are effective at pulling mobs to the group using their built in aggro and shouts. The cleric keeps everyone buffed and healed, but heals cause a lot of aggro so they also need tank buffs and 'Protect'. Warlocks also cause a lot of aggro because of the nature of their attacks so buffs and 'Protect' go on him. Your two bards should have 'Noise' which nulls aggro. Silkroad gold players don't usually need any buffs and together, the dance of magic can really increase the two wizard damage.