grimmgoose
Adventurer
Sure - I guess my point though is that there are thousands of combinations of spells, abilities, features, classes, subclasses, that I like to be at least somewhat prepared for each. I don't have time to vet, let alone read (or even know the existence of) the latest 5E flavor-of-the-month.That's a different issue, though. You can find broken builds for Core 2014 PCs. If a player brings a broken, unfair, bad faith character to the table I am still not concerned with they used the A5E or 2014 paladin to do it.
If a player absolutely wants to play some third-party subclass, they can talk to me about it, but it isn't assumed that they just get to play it.