Vinnie the Vendor is a new way the devs have implemented so that people can try an elixer.

He offers you to try one or save it for another time and even take you to the platinum store.

He offers you a Triple Elixer containing Triple Experience Gain, Triple Damage, Triple Armor and a boost of Speed and Luck for 15 minutes..... All for FREE!

He offers to also take you to the platinum store.

He is also in all campaigns if Alterra, even premium campaigns purchased with platinum.