So...after reading a ton of troll suggestions, I decided: Hy not make peoples poot their ideas in here too? Me start. Look out below:

Do you know what knights need? A buff. Yep, you heard me right. I think a Gran Aust would sound good, hmm? Well, let's get started.

1. User self curse? That's absurd! Make it so that it heals the player on charge and also removes all statuses.

2. Make the charge like DA, so that it shoots 3 shadow blades instead of one! All blades should also have a 100% chance to cause death to whatever it hits.

3. Multiply the damage by, say, 10? OK then.

There's the exaample, start creating your own!