Twin Valkyrie (dark and light) champion concept

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwi6qsPO6cPNAhVG_mMKHfrYDmMQjRwIBw&url=http%3A%2F%2Fwww.thewdve.com%2Fworld-of-warcraft-inventory-of-those-beautiful-sisters%2F&psig=AFQjCNHbN0kXodto4Rh2ZS_lAhHj5pCwaQ&ust=1466966309414062

Im bad at this but I thought the concept was cool.

passive: The twins share stats and health. When one dies they both die. The twin you are not controling takes 25% less damage from single target attacks and abilities. If an ability would deal damage to both sisters it instead deals 100% of the damage it would do to one. The sister you are not controlling can attack and move freely but will stay close. (like a bot)

Abilities do not gain base damage. Instead this champion has a secondary resource bar. The way it works is that it starts at 10 and gains 10 every level. When you use a light ability from the light sister, the bar shifts towards the dark side by 10, and when you use a dark ability it shifts towards the light side. Abilities gain +10 base damage or healing for every 10 the bar is shifted towards the light or dark for a maximum of +180 at level 18.

(Using a skill with one valkyrie does not put the other on cooldown)

Q: Dark bolt (dark sister) (rank up inscreases ap ratio) Cast a bolt in a line. This deals magic damage and slows enemies hit. (adds +10 light)

Q: Light bolt (light sister) (rank up inscreases ap ratio) cast a bolt in a line. This deals magic damage and blinds enemies hit. (adds +10 dark)

W: Curse of the valkyr (dark sister) (rank up inscreases ap ratio) Cast a curse on a target enemy dealing magic damage over time and increasing the damage they take from all sources (adds +10 light)

W: blessing of the valkyr (light sister) (rank up inscreases ap ratio) Cast a blessing on a nearby ally giving them a heal over time. (if cast on yourself it effects both valkyrie) (adds +10 dark)

E: veil of shadows (dark sister) (rank up inscreases ap ratio) Sheilds an ally or (both valkyrie). (adds +10 light)

E: Veil of light (light sister) (rank up inscreases ap ratio) light eminates from you knocking enemies back and dealing a small amount of magic damage. (adds +10 dark)

R: switch playable sister

(rank up gives a bonus to the played sister)

+5/10/15% damage for the dark sister +5/10/15% healing or shielding for the light sister. (this effects veil of shadows when playing the light sister)