Currently the stats of all valyrian weapons regardless of what it is stands at +6, this means a valyrian knife is better than a steel two hander and the match for a valyrian sword. To make it fairer I propose the following.
Valyrian weapons be placed into 3 catagories
Small items such as knives have a +2 attack but can be wielded with a one handed sword to add attack power (not sure if any house is shown to have one of these but they could be gained through events).
One handed valyrian weapons have a +4 to attack making them better than their steel variants and a match for even the largest swords in terms of attack power. Their ability to be wielded wih a shield makes them better than any steel weapon but not too much stronger as to make them overpowered which they currently are.
Two handed valyrian weapons have a +6 to attack but can not be used in conjunction with another weapon or a shield. This means that like the standard two handed weapons it turns out to be the sme stats as the one hander with a shield but your trading off defence for offence.












