New Champion Idea

The lore of Yasuo states that someone with wind 'powers' has killed his father obviously its not riven because she uses wind techniques. So this person with wind powers is my idea of a new champion. This shadow as i call him (no name yet) has followed yasuo and studied him and his techniques for years then he finally shows himself into the summoners rift to finish what he has started. So now yasuo and him have a conflict between them and they are ready to fight. This champion uses his wind against yasuo because he has studies all his techniques but yasuo escapes leaving them both in the summoners rift for the next battle. This shadows abilities, Q: windslash AD, shoots a bolt of black and red wind towards the target (not a tornado doesn't knock-up). W: uses an AD based shield. E: every third basic attack gives Name:_____ a empowered basic attack dealing 20% more ad. R: Has 1 to 5 stacks based on level and dashes to an enemy dealing damage to the enemy he slashes through (much like akali). Passive: Name:____ gains attack speed on the next 2 to 5 basic attacks (level based) stacking up to 50%. that is my idea hope you like it and peace out. Also the project theme should also be related to this champ.