Stats

Armor, magic resist, mana and attack speed are the same at every star level.

Volibear

1 star: Leap towards the current target and slam the ground. Enemies within a 3-hex radius are Stunned for 2 seconds and take 125 magic damage. This damage is doubled against shielded targets.
2 star: Leap towards the current target and slam the ground. Enemies within a 3-hex radius are Stunned for 3.5 seconds and take 250 magic damage. This damage is doubled against shielded targets.
3 star: Leap towards the current target and slam the ground. Enemies within a 3-hex radius are Stunned for 10 seconds and take 5000 magic damage. This damage is doubled against shielded targets.

7 patches changed Volibear, read out of Riot’s game files.

Patch 11.18Sept 2021
- Damage150 / 300 / 5000125 / 250 / 50001★ / 2★ / 3★
- Doombringer rewritten
  Before
  Volibear leaps toward his target, then slams the ground in a large area around him. This effect knocks up and stuns enemies for 3.5 seconds, removing any shields and dealing 300 magic damage.
  After
  Volibear leaps toward his target, then slams the ground in a large area around him. This effect knocks up and stuns enemies for 3.5 seconds, dealing 250 magic damage. This damage is doubled against shielded targets.
Patch 11.17Aug 2021
- Health11001000
- Stun duration2.5 / 3.5 / 102 / 3.5 / 101★ / 2★ / 3★
Patch 11.14Jul 2021
- Damage150 / 250 / 2000150 / 300 / 50001★ / 2★ / 3★
- Stun duration2.5 / 3 / 102.5 / 3.5 / 101★ / 2★ / 3★
Patch 11.13Jun 2021
- Starting mana100110
Patch 11.12Jun 2021
- Crit multiplier1.5%1.3%
Patch 11.11May 2021
- Starting mana80100
Patch 11.10May 2021
- Mana170200
- Starting mana10080