Darn I was hoping to consolidate a few abilities and ditch my Epic Spare Hand by working one of these rings into my gear setup. I'd rather have Exceptional Combat Mastery +5 always active. It would be nice to have Stunning +10 too, because with new useful Fighter feat options I'm not going to have room for Quickdraw, which made swapping to an Stunning +10 weapon tolerable.
Casters get items which increase Potency across all schools and grant some form of Arcane Lore, so why can't melee get something which boosts all tactics? Let's face it only Fighters and Monks use more than one type of tactical Feat anyway. The ring slot was a good choice, forcing melee to give up a ToD set bonus or burst damage for Monks.