D&D General Weapon Mastery - Yea or Nay?

[Crimson Longinus]

I kinda get why being able to switch them was added into the rules.

If your fighter selects short sword and longsword but then finds a wondrous magical battleaxe it’s a bit crappy find a big chunk of your skill just doesn’t apply. Or perhaps their preferences change in that character. You should be able to wield different weapons within your proficiency and 5e has fully embraced that.

Yes, but the problem is solved by just giving them all masteries. It is not OP, they will not be able to wield all weapons at one anyway.

 

[Bacon Bits]

In order for the magic energy to be a greatsword, it has to emulate the qualities of a greatsword.

Weight is a quality.

Yeah, the "magic swords don't have to have weight" reasoning that takes us down the same road as "spellcaster magic can freely do anything because it's magic, but martials have to follow physics because realism."

Like, Dex Barbarians can't use Rage damage, and Rogues have to use a weapon with Finesse for Sneak Attack. While I might agree that it's stupid that the only two-handed melee weapon that isn't heavy is the Greatclub and all SEVEN martial weapons are both, I don't think the rule is unfair to Warlocks.

Besides, this is a great reason to maybe actually use Versatile for once!