Verge, The Dark Lance

Verge, The Dark Lance. Roles: Tank

Health: 574.93 (+88 per level) Health regen: 8.52 (+0.53 per level) Mana: 287 (+49 per level) Mana regen: 8.425 (+0.8 per level) Attack damage: 54.553 (+3.5 per level) Armor: 28.53 (+3.15 per level) Attack speed: 0.603 (+1% per level) Magic Resist: 31.4 (+1.35 per level) Movement speed: 335

Passive: Dark returns, Each time Verge spends mana on an ability he gains a shield equal to the mana cost spent.

Q: Dark rush Mana Cost: 45/55/65/75/85 Range 1000
Verge charges forward in a line with his lance dealing physical damage and preforms a powerful thrust at the end dealing magic damage to enemies and slowing them for (5/10/15/20/25%) in a line in front of him for 3 seconds, he avoids unit collision with minions and monsters, and stops at the end of the range, or upon collision with a wall or enemy champion or when cancelled, Cannot use after Gungnir until he reclaims his lance, or when immobile.

W: Bulwark Mana Cost: 100 Verge Plants his shield into the ground in targeted direction for 5 seconds gaining (5/10/15/20/25%) Armor and Magic Resist, and intercepts projectiles, Moving cancels the ability.

E: Dark Word Mana cost: 40/55/70/85/100 Range: 350 Verge utters words of vile intent,or empowerment, If an enemy is targeted they will be taunted for (0.5/0.75/1.0/1.25/1.5) seconds, If an ally is targeted they gain a bonus (2/4/6/8/10)% Ad/Ap bonus for 5 seconds if they remain within the cast range, If used on an ally during bulwark all allies in range are affected at 50%(1/2/3/4/5%) effectiveness.

R: Gungnir Mana cost: 100/130/160 Cast Range: 1000. AoE Range: Inner 200, Outer 500. Verge takes aim for 1 second and tosses his lance into the air causing a Dark lance to fall upon a target area after another 1 second delay, Dealing AoE damage and snaring all targets in the direct landing zone for (1/2/3) seconds and knocking up others at the outer edge for (0.5/1/1.5) seconds, the lance remains in place, Verge cannot use Dark charge and deals 50% less auto attack damage until he collects it.

This is my first Champ concept I'm not very good at the whole Lore /story telling bit, So if anyone wants to help with it, that would be wonderful! Please tell me your thoughts below!

(Multiple edits so far, this concept is still a W.i.P. but thanks to the input some decent changes were made, more edits will be made Ie: spell Costs, base stat values + gains, etc... )