when managing warp Charges, bleed stacks, or other stacks, its abit of a pain to see you have 4-5 stacks and have them all expire at the same time.
i would suggest to have the stacks degrade 1 at a time, so if you have 4 stacks of warp they will degrade to 4 to 3 stacks after 25 seconds than from 3 to 2 stacks after another 25 seconds.
i feel it will make the flow of battle better rather than losing it all in a single instance.