They apply these bonuses to The weapon master is the one who can take any weapon and immediately understand its use and its greatest strength for its use in battle. Plenty of this material is still being worked on, so be aware of that. Characters of other classes are proficient with an assortment of mainly simple weapons and possibly also some martial or even exotic weapons. The Bastion (DMsguild, PWYW) The Tinkerer. I will probably end up doing that, as there are currently no weapons like that in 5e.
