If the skill in question is being chanted, you could use the word incantation to describe them.

At any rate, why not just use abilities or skills to describe everything in mass. D&D did this and it worked just fine :)

curses !!

I've always loved the word 'boon'.

I love Auras for the positive stuff and Plaques for negative. That sounds really cool. And I am backing up division team. You should have sub groups. You can use Plaques then

Once you sacrifice- you loose it, without being assured of benefit?

(you sacrifice a dragon you won 2 castles with, to god Stratos- who is god of air and rewords you with nothing, instead 3 skeletons you will fight, but if you sacrifice the mighty dragon you are powerfull by, to Persephone, she sends you 5 dedicated angels). you would have to assure player will not know trivialy how to decide, and, restore his attempt if gone so wrong----- good playgame I think

So said, you can fire something like:

- Wills (of player)

- Exhoust (of player)

- Sacrifice (of player)

Later 2 similiar, but less definitive and risky