xigbar
Explorer
Both the Wizards and Cleric in both parties will have time to buff. They do have the Druid, and possibly the Animal Companion, if ACFs are out of the picture. If you give the Unbeliever a high Init (you'd have to, or it just gets killed by a Shapechanged Wizard, for example,) it should also be buffed, and you charge the Druid. A grapple focused build might go toe to toe with the Wildshaped Druid. The Wizard and Cleric, and the Rogues and Barbarians, are left to duke it out. Of course, this assumes a sort of shock trooper (by definition, not the feat) kind of Unbeliever Build, but in that case, it's an even playing field. In thart context, it's making a noticeable impact on gmae play among Tier Ones. I might go so far as to say "fellow" Tier Ones.