[Request Knight Buff] That increases attack speed by 2x

[Strikers]

Hello, I want to request a knight spell that increases their attack speed by 2x for 30 seconds.

Additional Information:
Spell type: Self-Only
Duration: 30 Seconds
Attack Speed Increase: 2x
Used by Vocation ID's: 4 and 8
For TFS 8.5 (0.3.5)

Thanks a lot for whoever make the script