Cerberus Concept

Came up with a small story... The damages shown below of course can be modified more or less. Its a concept. I was originally thinking support character but then turned into a possible top laner.

Cebereus aka Cerberus Cerberus escaped to the Mortal world before the humans had forgotten who the true gods were before his world dissipated and the Greek Gods along with it. Cerberus took on human form and the name Cebereus for a more appealing look to maintain his secret from the mortals of the world. In human form he found he could maintain some power from what he had in his original form. With this knowledge he set out to see what was so interesting in the Mortal world knowing full well he could defend himself from a simple mortal. Along his journey he came across a band of warriors. The mortals were not just the simple beings he had come to see in his station at the gates of hell. They were immortal and had a story like him. He banded together with them and swore to himself to never allow the beliefs others demolish his existence.

Passive - gains a permanent 2% movement speed on enemy death assist and 5% on kill. Cebereus - When not casting uses his daggers(the shape of fangs) as attack damage.

Q - escape summons creeps from the depths of hell to reach up through the ground and hold the enemy in place 40/85/120/160/200 (+100% Ability Power) magic damage

W - no passing opens the ground that reaches to the depths of hell to form a barrier.

E - Slow Death uses his daggers to inflict grievous wounds and bleeds the enemy for 3 seconds. Does 60/90/125/175/220 Attack Damage (+10% Ability power)

R- Cerberus Changes into his true form and gains 15/25/35% more armor and magic defense. and 15/25/35% health. Uses claws (attack damage)

E- Burn in hell Breaths out fire doing magic damage of 55/75/100/135/175 (+60% Ability Power) and applies an effect reducing the magic resist by 10/15/20/30/45 for 3 seconds.

W- Take Charge Dashes toward designated area and knocks up enemies he runs through doing 35/55/95/130/175 attack damage.

Q- Ravage Feeds from the flesh of surrounding enemies and gains health by dealing 25/45/75/100/135 Attack Damage (+20% of ability power) and heals himself for 25% of that amount.

So what are your thoughts?