Skill which would allow you place an adverb to spell chant like "use ominously
at cast cure light wounds at dkir" and then chating would begin like "Dkir
starts chant omiously." and "You start chanting ominously."
Not very useful but might ad some flavor if wanted to game, and annoy trigger
happy people.
Other skill to tank types which would allow them to notice if mob they are
fighting is concentrating to either skill or spell, not spesific to which
skill or spell. This could be useful, in eq parties. Tanks would need to
decide if they want to do damage or observe mob they are fighting. Skill could
be short duration, but effect could last little while, or until movement.