Now, this has been talked about in casual for a while now but is it possible to see two new weapon feats? Specifically Monkey Grip and Weild Oversized Weapon. These feats were found in the 3.5 Complete Warrior Supplement book published by Wizards of the Coast.
Wield Oversized WeaponRequirments: Monkey Grip feat, STR 25, Base attack bonus +21
"You can treat any weapon as if it were one size category smaller than normal and one category "lighter" for the purpose of determining the amount of effort it takes to wield. For instance, a halfling with this feat could wield a Medium short sword as a Small light weapon, or a human could wield an ogre's Large greatclub as a Medium twohanded weapon. The weapon still deals its normal amount of damage."
Naturally, there would be some changes to the requirement and need to balance it. A few people recommended locking it behind a STR requirement of 18-20 and maybe only have it as a feat for Fighters and Barbarians at a certain level (like levels 12-15), have it also require power attack or improved power attack. Now I've looked at this through rose-colored glasses and maybe there is a downside to allowing such a feat, hence why this thread was made. As for actually implementing it, someone suggested it being a combat mode you can activate or deactivate. I personally would love to see a greatsword weilding shield defender. As for duel weilding two large weapns, obviously that would be blocked.
Monkey GripRequirement: Base attack bonus +1
"You can use melee weapons one size category larger than you are with a -2 penalty on the attack roll, but the amount of effort it takes you to use the weapon does not change. For instance, a Large longsword (a one-handed weapon for a Large creature) is considered a two-handed weapon for a Medium creature that does not have this feat. For a Medium creature that has this feat, it is still considered a one-handed weapon. You can wield a larger light weapon as a light weapon, or a larger two-handed weapon in two hands. You cannot wield a larger weapon in your off hand, and you cannot use this feat with a double weapon."
This one for sure would be nice. Now I don't play races smaller than Medium but the current restriction of how they wield weapons is both cool but limiting. It would be nice to see this feat be takeable for Halfling and Gnome. This will allow the smaller races to be able to wield weapons like their taller brethren. Gnome Barb anyone? Str fighter halfling? Yes, please.
Please feel free to leave ideas/discussions below! The more players/DMs/CCs that weigh in on this the better!
Edit: tldr; Weild Oversized weapon means you can weild Large weapons as single handed. Monkey Grip means you can use weapons as one size category smaller. IE Medium weapons become small.