Your champions gain a 5% max Health shield and deal 7% bonus magic damage. Gain additional bonuses for each unique 3-star ☆☆☆ champion:
1 ☆☆☆: Increase shield and magic damage by 1.5% for each 3-star.
3 ☆☆☆: 18%

and 15


5 ☆☆☆: Convert 40% of the bonus magic damage to true damage.
8 ☆☆☆: Every 4 seconds of combat, a 3-star champion ascends to 4-star.