My old one was pretty bad, so I decided to make it a little more simple.
My idea for sion rework
Passive: Soul leech
Sion permanently increases his maximum health whenever he kills a unit with either his attacks or abilities. This bonus is doubled against Champions and large units HEALTH GAINED PER KILL: 1.5/2.5/3.5 (Upgrades at levels 1,7, and 13.)
Q: Deadly dash
Active: Sion dashes to a single target enemy dealing physical damage and applying a mark of 'Trap of the dead'. When using a basic attack at an enemy with the mark of 'Trap of the dead' Sion snares his enemy (E/Brutal strike works) for 1.0 / 1.5 / 1.75 / 2.0 / 2.5 seconds, and 'Trap of the dead' stacks up to one time and last up to 6 seconds or until a basic attack is used. Additionally, Sion reduces the armor of the enemy for 4 seconds.
Damage: 50 / 75 / 100 / 125 / 150 (+ 80% AD)
Armor reduced: 10 / 15 / 20 / 25 / 30%
COST: 18 / 24 / 36 / 44 / 50
W: Death's caress
Active: Sion surrounds himself with a shield which absorbs 100/150/200/250/300 (+.075 Max HP) damage and gains a movement speed buff of 10%, which becomes 15% when an enemy has their back turned for up to 10 seconds. (Basically, the shield absorbs more damage the less health sion has).
Shield strength/Damage:100/150/200/250/300 (+.075 Max HP)
COST: 26 / 32 / 38 / 44 / 50 HEALTH
E: Brutal strike
Passive: Sion gains 1.0/1.5/2.0 (upgrades at levels 1/7/13) fury per second. Using Brutal strike, Sion gains 5 fury instead.(max 100)
Active: Sion's next basic attack deals bonus damage based on +8% of the enemy's missing health and causes the enemy to bleed for 5 seconds(Like darius's passive). If the enemy dies, Sion gains 8 health per sec for the next 5 seconds.
BONUS PHYSICAL DAMAGE: 20 / 40 / 60 / 80 / 100 / (+110% AD)
Cost: 15 / 22 / 29 / 36 / 43 HEALTH
Cooldown: 6 at all ranks
Active: For the next 15 seconds,Sion gains bonus lifesteal, attack speed,and gains a attack damage buff. Additionally, Sion's basic attacks will heal surrounding allies for a percentage of the damage dealt.
Lifesteal/Attack speed:50% / 75% / 100%
Attack damage buff: 25 / 45 / 65
Cost: 100 fury
I would love some feedback!
Btw, I need help thinking of something for making a cost on Sion's ult, like maybe using the ult sacrifices his armor/mr while the ult is active, but I really don't know atm...