I thought it might be a cool Idea if as a leader of a guild could open a package once ever 24 hours and would get a voodoo card that can assist the whole guild. Ie, say some members from (Helm) want to raid (Ayes) it possible that they can draw upon the guild voodoo stash which may have a Fug in it, the same can also be said for defending, Ayes might want to put a Mindbar up and so they can use one from the guild voodoo stash to put one up.
The turn casting isn't done by one member ever, the guild voodoo stash has it own turn count, (gains turns the same as all ways) which can reach a max of 200
It also possible that guild members can donate voodoo to the storage so that other members can use it in times of crisis.
The guild leader also has permission to choose who can use it.
It only a rough Idea but thought it might add a little more team work and fun to the game.