Jsk Feats:Small Weapon Master

Subtle weapons should be felt, not seen. When you are wielding a light weapon with a damage die no higher than a d4, you gain the following benefits.
 * You make ability checks to conceal a weapon Effected by this feat with advantage.
 * When you make an Attack using a weapon Effected by this feat, you score a critical hit on a roll of 19 and 20.
 * When you take the Attack action and throw a weapon Effected by this feat, you can draw another weapon that would be Effected by this feat as part of the same action.
 * Throwing a weapon Effected by this feat at long range does not impose disadvantage on the attack roll.