Zed:
http://vignette2.wikia.nocookie.net/leagueoflegends/images/3/3f/Living_Shadow.png/revision/latest?cb=20130929123514 Living Shadow RANGE: 700 SPEED: 1750 COST: 40 / 35 / 30 / 25 / 20 energy COOLDOWN: 18 / 17 / 16 / 15 / 14
Passive: Zed's bonus attack damage is increased.
- Bonus AD Increase: 5 / 10 / 15 / 20 / 25% bonus AD
Living Shadow: Zed's shadows mimic his basic abilities. If a mimicked ability strikes a target affected by its primary effect, Zed restores energy.
- Energy Restored: 20 / 25 / 30 / 35 / 40 energy
Active: Zed's shadow dashes forward, remaining in place for 4 seconds. Living Shadow 2 Reactivating Living Shadow causes Zed to blink to its location, swapping places with it.
Akali:
http://vignette4.wikia.nocookie.net/leagueoflegends/images/1/1f/Mark_of_the_Assassin.png/revision/latest?cb=20130929122635 Mark of the Assassin RANGE: 600 COST: 60 energy COOLDOWN: 6 / 5.5 / 5 / 4.5 / 4
Active: Akali throws her kama at the target unit, dealing magic damage and marking them for 6 seconds.
- Magic Damage: 35 / 55 / 75 / 95 / 115 (+ 40% AP)
Basic attacks detonate the mark, dealing bonus magic damage and restoring energy.
- Bonus Magic Damage: 45 / 70 / 95 / 120 / 145 (+ 50% AP)
- Total Magic Damage: 80 / 125 / 170 / 215 / 260 (+ 90% AP)
Energy Restored: 20 / 25 / 30 / 35 / 40
Shen x2:
http://vignette3.wikia.nocookie.net/leagueoflegends/images/1/1a/Ki_Strike.png/revision/latest?cb=20130929123238 Ki Strike STATIC COOLDOWN: 9 / 8 / 7
Shen's basic attacks periodically deal 8 - 76 (based on level) (+ 10% bonus health) bonus magic damage and restore 10 / 20 / 30 energy.
Every basic attack reduces Ki Strike's cooldown by 1 second, doubled to 2 seconds while Feint holds.
http://vignette2.wikia.nocookie.net/leagueoflegends/images/9/92/Shadow_Dash.png/revision/latest?cb=20130929123239 Shadow Dash RANGE: 600 COST: 100 / 95 / 90 / 85 / 80 energy COOLDOWN: 16 / 14 / 12 / 10 / 8
Active: Shen dashes in the target direction, dealing magic damage to all enemy champions he hits, taunting them for 1.5 seconds and restoring 40 energy per target hit.
- Magic damage: 50 / 85 / 120 / 155 / 190 (+ 50% AP)
Taunted opponents deal half damage to Shen with their basic attacks.
Kennen x2:
http://vignette1.wikia.nocookie.net/leagueoflegends/images/2/2a/Mark_of_the_Storm.png/revision/latest?cb=20130929122943 Mark of the Storm
Enemies hit by Kennen's abilities receive a Mark of the Storm for 6.25 seconds, stacking up to three times. At three stacks, the marks consume themselves to stun the target for 1.25 seconds and **restore 25 energy.
**
If the stun is applied more than once within 7 seconds, it has a diminished effect and only stuns for approximately 0.5 seconds.
http://vignette1.wikia.nocookie.net/leagueoflegends/images/7/76/Lightning_Rush.png/revision/latest?cb=20130929122942 Lightning Rush COST: 100 / 95 / 90 / 85 / 80 energy COOLDOWN: 10 / 9 / 8 / 7 / 6
Active: Kennen transforms into a ball of electricity, unable to use basic attacks, ghosting and doubling his movement speed for 2 seconds, and gaining bonus armor and magic resistance for 4 seconds.
- Bonus Resistances: 10 / 20 / 30 / 40 / 50
Kennen deals magic damage to all enemies he passes through, doubled against champions, and restores 40 energy the first time he damages an enemy with Lightning Rush.
- Magic Damage: 42.5 / 62.5 / 82.5 / 102.5 / 122.5 (+ 30% AP)
Kennen can reactivate Lightning Rush to cancel the bonus movement speed, allowing him to use basic attacks again.
Lee Sin:
http://vignette2.wikia.nocookie.net/leagueoflegends/images/2/24/Flurry.png/revision/latest?cb=20130929123010 Flurry
After using an ability, Lee Sin's next 2 basic attacks within 3 seconds gain 40% attack speed, returning 20 energy on the first attack and 10 energy on the second.
I think that covers all the energy users correct?