Leona

Solar
Defender

This champion · paste in the game's Team Planner

Shield Bash
Passive: Start combat with 60 / 80 / 100  bonus Armor and Magic Resist that decays over 12 seconds.

Active: Bash the current target, dealing 60 / 108 / 162  magic damage and Stunning them for 1.5 seconds.

Traits

Defender

Your team gains 12 Armor and Magic Resist. Defenders gain more.

Solar

Your champions gain a 5% max Health shield and deal 8% bonus magic damage. Gain additional bonuses for each unique 3-star champion:

1 : Increase shield and magic damage by 1% for each 3-star. 
3 : 15%  and 12 
5 : Convert 40% of the bonus magic damage to true damage.
7 : Every 4 seconds of combat, a 3-star champion ascends to 4-star.