Stormraider's Surge is a tier 6 Cunning Keystone mastery.
- Time frame to trigger the effect increased to 2.5 seconds from 2.
- Movement speed increased to 40% from 35%.
- New Effect: Grants 75% Slow Resistance.
- V5.22 Added
- Tier 6 Cunning Keystone mastery with 1 rank.
- Dealing 30% of a champion's maximum health within 2 seconds grants you 35% bonus movement speed for 3 seconds (10 second cooldown).