Q: 191
In Arms and Equipment pg. 5 it says
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Most weapons keep the same effective reach no matter what their size (Although the reach of their potential wielders certainly changes). However, weapons that normally have a reach of greater than 5 feet have different reaches when you design them at different sizes. If you're designing a larger version of such a weapon, increase its reach by 5 feet for each size category it increases. A huge guisarme has a reach of 15 feet, for example, while a gargantuan guisarme has a reach of 20 feet.
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Has this been updated to 3.5? Can a person who has monkey grip and exotic weapon proficiency (Spiked Chain) use a large spiked chain to threaten out an additional five feet (i.e. all squares within 15 feet)?