The Superstar is an item purchased from the Miner which gives a fighting buff.
OBTAINING
The Superstar can be bought from the Miner for 500,000 Coins and 32 Blood Stones. You must be Mining Level 80 or above to purchase it.
ABILITIES
Right clicking the Superstar costs 10,000 Coins and applies the Resistance I effect for 10 seconds (stacking).
It is a very popular purchase for late-game players.