Mort_Q
First Post
You don't need to be armed to flank in 4e... but I will grant that an OA with a staff isslightlybetter than an unarmed OA (treated as an improvised weapon).
I know this response is late.. but who says you would have to make an unarmed attack even? I don't recall any rules saying you can't poke someone with a wand or bash them over the head with a magic orb. It would still just be an improvised weapon, but a wizard could be wielding an orb and wand and still be able to make OA.
The last sentence of the Orbs description ( PH 238 ) specifically says you can't use one for a melee attack, and the Rods description says the same, including the notion that most implements are also disallowed.
That said, I'd allow an improvised attack, but without the proficiency bonuses, most wizards won't even come close to hitting a STR vs AC, and even if you do there isn't much damage.