Originally Posted by xereva
I think you already gave some nice suggestions.
But what i think that is the most important that it is clear when you have to recast it. So a warning when it fades, or something to notice it... seems to me that an empty bar won't really get your attention.
EDIT: and something flashing in red like just suggested is always good ;-)
EDIT 2: Or an blue circular bar-timer, with inside that circle a smaller blue circle divided in 3 parts (like a pie). Each pie-piece is a charge, and disappears if used. In the same time the circular timer gets less. If the water shield fades they all (the circular timer and the pie-pieces) turn (or blink in) red. Hopefully this is a little clear without an illustration...
EDIT 3: hmm, would like something like this when at 45 seconds and 1 charge left:

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Bringing back the dead a bit here, but I think this a phenominal way to display to display Lifebloom stacks and timer in a compact and easy to read way. I have absolutely no coding experience, but is that feasable?
I generally think that this sort of circular configuration lends itself to being very intuitive. Ideally, one big collection of rings with different colors denoting different spells, each with the same sort of 'decreasing volume' timer. That seems like it would free up a lot of clutter from traditional DoT and HoT timers