The Astral Gale
Vaati Elixir Injector
The Vaati made use of Elixir in their medicine and created clockwork devices that could be used in combat. This wrist-mounted device makes use of efficiencies gained from the Fibonnaci sequence. It can store up to 34 doses of Elixir that match a number in the Fibonnaci sequence (1, 1, 2, 3, 5, 8, 13, 21, 34) and doses must be spent in numbers that similarly match the Fibonnaci sequence.
The Vaati optimized the flow of Elixir to make it more predictable. Thus each dose used heals 6 points of damage.
Using the dispenser is a full round action but the user is not defenseless during that time so long as the device is being used on himself.