The first WoW Dragonflight alpha build added many trinkets from the first raid, Vault of the Incarnates. Check out their interesting dragon-themed procs from datamining!
Way of Controlled Currents (Agi): Equip: Your critical strikes have a chance to build Static Electricity, granting 2% attack speed per stack. At 10 stacks lightning surges through you, increasing your movement speed by 30% for 12 seconds.