TFT Set 18.1
Leona, a 1-cost Defender unit in TFT Set 18

Leona

1 Magic Tank 
Shield Bash
Passive: Start combat with 60 / 70 / 80 Ability Power bonus Armor and Magic Resist that decays over 12 seconds.

Active: Bash the current target, dealing 60 / 108 / 162 Armor magic damage and Stunning them for 1.5 seconds.
Generic
60 / 70 / 80 Ability Power
Decay Duration
12
Magic Damage
60 / 108 / 162 Armor
Stun Duration
1.5

Traits

  • Defender 
    Your team gains 12 Armor and Magic Resist. Defenders gain more.
  • Solar 
    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% Attack Speed and 15 ArmorMagic Resist
5 : Convert 50% of the bonus magic damage to true damage.
8 : Every 4 seconds of combat, a 3-star champion ascends to 4-star.

Leona enables

  • Stun

    Disables the target for a duration: no movement, no attacks, no ability casts.

  • Armor

    The physical-defense stat that reduces incoming AD damage. Tank items, the Defender trait, and champions or items that grant flat Armor all feed into this mechanic, alongside the handful of effects that scale a bonus off a unit's Armor value. Sunder is its inverse — a debuff that reduces enemy Armor.

  • Magic Resist

    The magic-defense stat that reduces incoming AP damage. Many sustain items, the Defender frontline trait, and "Gain X Armor and Magic Resist" effects grant or scale off it; Shred is its inverse.