Until now, I was convinced that eladrin's longsword prof was entirely worthless. Every class that would use it already had it, the rogue can't use it with his powers, and wizards and warlocks don't need to get into melee with their powers. While there's the one wizard paragon path that makes use of it, in general its just not worth it.
Except one time....the cleric! The cleric only gets simple martial weapons, and would certainly love to have stronger weapons. The longsword pretty much gains him a +1 to attack rolls (vs a mace) or +2 - +3 more damage (vs a dagger).
This is nice because generally the eladrin doesn't have much for the cleric in general, no stat synergies, no skill bonuses are are particularly good for a cleric. But with this, the cleric at least gets a free feat out of the deal, and then with eladrin solider could get another +2.
So while the eladrin cleric is not the most optimized combo, the proficiency at least makes the combo a bit better than it would otherwise be.
Except one time....the cleric! The cleric only gets simple martial weapons, and would certainly love to have stronger weapons. The longsword pretty much gains him a +1 to attack rolls (vs a mace) or +2 - +3 more damage (vs a dagger).
This is nice because generally the eladrin doesn't have much for the cleric in general, no stat synergies, no skill bonuses are are particularly good for a cleric. But with this, the cleric at least gets a free feat out of the deal, and then with eladrin solider could get another +2.
So while the eladrin cleric is not the most optimized combo, the proficiency at least makes the combo a bit better than it would otherwise be.