item ability

my problem is that i have death pact on this item and when i try to use it, it doesnt work. the mana costs even show up on the item description.

What did you base the item off of?
Try to add in a little more description as well, it makes it easier to answer the question.
~Azhag~

i think the only abilities that doesn't work with items are autocast..

this might sound stupid, but is the item set to actively used? How many charges does it have?

I think there's already an item with a Death Pact-like effect, the Dagger of Sacrifice or something? What ability does it use? Would it be easier to start with that as the base item?

Has to be actily used to work.