Nadir has 550-775 base movement speed and is unslowable. Conversely, all heroes attack him with a ranged attack, and he takes 66% bonus damage from all sources.
Nadir ejects a ball of negative energy which is strongly attracted to him. It burns the mana of enemies it touches if they have any, otherwise it just damages them. Dealing damage has a short local cooldown. The ball keeps trying to reach Nadir, hence he must dodge and weave to keep 'juggling' it. It can be maintained indefinitely by a committed player, but will slow his movement across the map. The cooldown starts when the ball ends.
Nadir drags the next unit he passes through along with him for a short duration. Additional units that he passes through will join at the end of the line, and each time a unit joins the line, the duration is increased. Deals knockback damage if enemy units are dragged into trees or rocks!
After a short delay, Nadir sidesteps to disjoint any incoming projectiles and lose the attention of his attackers. Enemies around him at that time will also take damage.
Nadir begins tracing a shape with his dancing. Once the shape is complete, all hostile units within take damage and are chilled. Nadir leeches a percentage of the damage dealt as life. He can draw several shapes within the time limit, though smaller shapes will be easier to step out of before they're completed.