Two of the roles in Rift, Warrior and Rogue, have the ability to dual-wield. Certain "souls" (effectively classes) gain buffs that grant on-hit effects to weapon attacks.
For instance -- the Assassin Soul offers poisons (up to two at a time, even) while the Rift Blade Soul offers the StormBlade buff (among others).
In the case of the rogue -- do your two poisons represent "off-hand" and "main-hand", or are both weapons benefiting from both poisons?
In the case of the warrior -- does the Stormblade buff apply to your off-hand weapon when you dual-wield, or does the buff only ever affect the main hand weapon?