Sorry to be grumpy about darkness. IMO its a broken spell.
I think you may have the right line of thought with a light trinket CP. But I remember that wasn't possible with the way the game works.
I've always hated the spell 'Darkness', Its just too powerfull without a counter. (Yes I know about the spell that blinds everyone.)
Also I didn't think that you had already hit them with the nerf bat. (My Bad)...
AlpineJoe you are a gentleman, Don't modify your game, carry through and finish it. You have the position, use it.
I don't mind getting crushed quickly, It's getting crushed slowly that I don't like.
So go for broke. Enjoy your position...
