CapnZapp
Legend
The original suggestion, to remove Concentration for a particular spell you take via a "weak" invocation, could work.
But then the thread started suggesting some kind of more general ability, where you just add "weak" invocation spells to the warlock spell list, and worse, that you could pick your conc-free spell yourself.
That's way out of line, and I wouldn't recommend it.
The original suggestion, where you spend your invocation and get one (1) fixed spell you can use without concentration, and by doing so aren't picking one of the "better" invocations, is powerful enough.
But then the thread started suggesting some kind of more general ability, where you just add "weak" invocation spells to the warlock spell list, and worse, that you could pick your conc-free spell yourself.
That's way out of line, and I wouldn't recommend it.
The original suggestion, where you spend your invocation and get one (1) fixed spell you can use without concentration, and by doing so aren't picking one of the "better" invocations, is powerful enough.