Thaws a frozen or chilled character instantly. Refills 100% of mana and health instantly. Refills 35% of mana and health instantly. The original five Diablo II characters have steady rates that are unchanged in the Expansion, while the Assassin and Druid have more irregular stats. Drinking a mana potion fills a certain number of points every time, depending on the potion type and which class your character is. Mana regenerates and can be leeched back in D2 and D2X, so most warrior characters never add a point to their Energy, and get enough mana from leech and +mana items. These figures are the same for D2 or D2X, and are current as of v1.09. The original five Diablo II characters have changed in v1.08 to get more from potions, rather than a steady gain of 20 or 30 or 40 per potion, as was always the case in old D2. Drinking a healing potion fills a certain number of points every time, depending on the potion type and which class your character is.