How to counter Medusa in Dota 2

Medusa magically splits her shot into several arrows. These arrows deal a lower percent of her normal damage.The extra targets will not receive other attack effects (such as critical strike).

A mystic snake made of energy jumps from target to target dealing damage. Damage and speed increases with each jump. After it reaches its last target, it returns to Medusa to replenish her with mana. The snake returns a percentage of the targets' total mana.

Medusa fires arrows in a line that land in 3 groups, with each grouping larger than the previous. Enemies struck by a volley of arrows take an initial burst of damage and then are rooted, cannot turn, are revealed to the enemy, and take damage per second.

When Medusa is targeted with a spell, a single-target Mystic Snake is sent back towards the enemy that turns them into stone for 1s.

Creates a shield that absorbs 98% of incoming damage in exchange for Medusa's mana. Illusions absorb 60% less damage per point of mana.

Any enemy units looking at Medusa will have their movement and attack speed slowed. If 2 seconds of total time is accumulated looking at Medusa while Stone Gaze is active, that unit will turn to stone. Petrified units are stunned, and take bonus physical attack damage.