Here is a random example of what I mean:
Passive: Flow
As Yasuo uses his abilities, he generates flow (additional info in ability descriptions).
When Yasuo reaches max flow, he enters Battle Trance, gaining increased attack speed and armor penetration (based on level). Additionally, his abilities will no longer generate flow for as long as he is in battle trance. Once his flow returns to zero, he exits battle trance and begins building his flow again.
Q: Swift wind Strikes: Q1- Yasuo Thrusts forward, Striking all enemies in a line. Range 350. If combined with his E, the range extends to 450 and deals increased damage.
Q2: Yasuo strikes in an arc directly in front of him. Range 300. This strike destroys projectiles. If combined with his E, the attack is radial.
Q3: Yasuo Hurls a tornado that knocks minions/small monsters aside and knocks up large monsters/enemy champions (range 600). If combined with E, the tornado travels faster, and stops on the first large monster/enemy champion, persisting for a moment and dealing increased damage. During Battle Trance, these strikes can critically strike and apply on hit effects.
No matter which strike he is using, generate flow for each enemy hit.
W: Wind Shield
Passive: Yasuo will passively generate a small amount of flow while moving. Flow gained via movement is temporarily stopped if Yasuo gets immobilized (stunned or rooted)
Active: Yasuo grants himself a small shield that decays over 5 seconds. The shield amount scales with how much flow he currently has (it does NOT cost flow). During battle trance, the shield will not decay, and grants Yasuo resistance to slows.
E: Sweeping Blade: Yasuo dashes through an enemy target, dealing a small amount of damage to the target as well as any other enemies he passes through. Enemies damaged by this ability cannot be selected as a target for a short duration. During battle trance, each target damaged by this ability grants a small, stacking movement speed buff.
R: 1000 Cuts: Yasuo teleports to an enemy champion, dealing damage and generating a large amount of flow, this ability can be cast up to 2/3/4 times within a short duration. These attacks can critically strike, deal on hit effects, still generate flow when Yas is in his battle trance.