new item in S3, you get one at the start of the game with a certain utility mastery. Its basically a combination health potion/mana potion, but not as strong. --- The original assassin of joy Hero's aren't made. They're cornered.
if you get a certain utility mastery, you start with a free item which gives something like 80hp over 8seconds and 60 mana over 8 seconds. It's like half health potion, half a mana potion.
FYI, a later mastery that builds out of it gets you a free ward as well! or 25g if on dom or TT --- "That is why war is so tragic. To win means to make victims of your opponents and give birth to hatred." - Kratos Aurion, Tales of Symphonia