In other words, you can drink one potion per encounter. The debuff itself has absolutely no duration. It sticks on you until you drop combat. This is largely meaningless to the casual player, but what it will do to raiding will be rejoiced as well as reviled. Alchemists are going to take a huge hit to their income if this goes live. Yeah yeah, I know most Alchemists will say their profit is from Herbalism, but after seeing the insane prices on Haste Potions, Super Mana Potions and Flasks, I beg to differ.