Arius by TimeLord

Level 1:
Enduring Energy (Q): Quest: Hit 30 Heroes with Holy Bolt. Reward: Holy Bolt now pierces targets, healing all ally Heroes hit and damaging all enemy Heroes hit.
Heavenly Aim (W): Quest: Empower 100 allied basic attacks with Blessed Aim. Reward: Bonus damage increased to 75%.
Globe of Light: Quest: Regen globes restore 5% more Health and Mana to you and nearby allies, up to 100%. Reward: Collect 20 globes to increase this bonus by another 20%.

Level 4:
Surge of Strength (Q): Holy Bolt increases target ally's move speed by 15% for 2 seconds.
Zeal (W): Smite also deals 60% damage to enemies near the target.
Vigor (E): Your basic attacks during Blessed Aim reduce its cooldown by 1 second per attack.

Level 7:
Heavy Blow (W): Smite also slows the target by 20% for 2 seconds.
Supressing Strike (W): Increases the Silence duration by 0.5 seconds.
Blessed Souls (D): Increases Redemption's healing from friendly Minions' corpses by 40%.

Level 13:
Energized (Q): Ally Heroes hit with Holy Bolt receive 30% increased healing from all sources for 3 seconds.
Sanctuary (E): Blessed Aim also grants you 10% Spell Power.
Defiance (D): Enemies who attack you while Conviction is active have their attack speed reduced by 20% for 3 seconds.

Level 16:
Twice Blessed (Q): Holy Bolt now has 2 charges.
Fanaticism (E): Blessed Aim now empowers every basic attack.
Noble Sacrifice (D): Redemption now also redeems souls of nearby slain Heroes, healing for 12% of max Health per Hero.

Level 20:
Heaven's Wrath (R1): Increases lightning bolt's damage by 50% and the number of charged bolts to 10.
Holy Protection (R2): Increases Spell Armor by 20 and healing by 20%.
Conviction: Activate to reduce nearby enemy Heroes' Spell Armor by 30 for 3 seconds. Cooldown: 80 seconds
Prayer (D): Redemption now also provides a small passive heal every 3 seconds.