Viper, Netherdrake

Increases attack speed for 20 seconds, at the cost of taking additional damage.

Level 1 - 25% increase, 5% damage taken increase.
Level 2 - 50% increase, 10% damage taken increase.
Level 3 - 75% increase, 15% damage taken increase.
Level 4 - 100% increase, 20% damage taken increase.

Cooldown: 40 seconds.

Level 1: 80 mana, 40 sec cooldown.
Level 2: 90 mana, 40 sec cooldown.
Level 3: 110 mana, 40 sec cooldown.
Level 4: 130 mana, 40 sec cooldown.

Coats Viper's attack with poison. Slows movement and attack speeds and lasts 2 seconds.

Level 1 - Slows speed by 10%, deals 6 damage per second.
Level 2 - Slows speed by 20%, deals 12 damage per second.
Level 3 - Slows speed by 30%, deals 18 damage per second.
Level 4 - Slows speed by 40%, deals 24 damage per second.

Cooldown: 4/3/0/0 seconds.

Level 1: 20 mana, 4 sec cooldown.
Level 2: 20 mana, 3 sec cooldown.
Level 3: 20 mana, 0 sec cooldown.
Level 4: 20 mana, 0 sec cooldown.

Viper's body is covered with poison. Any unit that attacks it becomes infected. Reduced movement and attack speed and minor damage for 3 seconds. The poison also absorbs some of the damage from spells.

Level 1 - 5% reduction, 5 damage per second. 5% magic reduction.
Level 2 - 10% reduction, 10 damage per second. 10% magic reduction.
Level 3 - 15% reduction, 15 damage per second. 15% magic reduction.
Level 4 - 20% reduction, 20 damage per second. 20% magic reduction.

Passive

Strikes with a vicious bite, slowing movement and attack speeds significantly and dealing poison damage over time.
Lasts 5 seconds.

Level 1 - Deals 60 damage per second and slows speeds by 40%.
Level 2 - Deals 100 damage per second and slows speeds by 60%.
Level 3 - Deals 145 damage per second and slows speeds by 80%.

Cooldown: 80 seconds.

Level 1: 125 mana, 80 sec cooldown.
Level 2: 175 mana, 80 sec cooldown.
Level 3: 250 mana, 80 sec cooldown.