Elixir of Transformation

Using your potion kit, brew an elixir that alters the drinker’s body for 1 hour. Choose one effect when brewed: gain a flying speed equal to walking speed, gain a swimming speed and water breathing, gain resistance to nonmagical bludgeoning/piercing/slashing damage, or gain advantage on STR, DEX, or CON checks and saves. The elixir loses potency after 8 hours.