Might want to cut out the last sentence about trying to trip Brennus, I'd have murdered you for trying anyway and it is no longer applicable. 

Otherwise looks good, my character's wooden shield might be in trouble.

-Regarding pre-edit

Caspus is large, but Brennus had a good six feet between them even before stepping backwards himself, I'm not quite as tall as Caspus but I can tell you that even with a serious stride it would take two steps to cover that distance, and you'd probably over-extend heavily while doing so. (Which is risky, especially for a spear and shield user, who tends to carry out medium shuffling style steps for just that reason.)