Nidhoggur by Koetetsu

Tier 1

Great Devourer [Trait] (Quest) - Activate your trait to devour an enemy minion, digesting it and regaining health and mana over 10 seconds. Reward: after devouring 25 minions, gain 10% increased health and be able to devour enemy* non-boss mercenaries and gain bonuses depending on the devoured mercenary and lasts for 20 seconds or until a new target is devoured.

- Siege Giants: gain 100% increased damage against structures for 5 attacks.
- Knights: gains resistant (25% DR) for 20 seconds.
- Impaler: gain 100% increased basic attack damage against heroes for 5 attacks.
- Hellbat: basic attacks deal 100% splash damage to enemies for 5 attacks.
- Raven: grants a one time cast of seeker missile that deals heavy splash damage.

*will not work on uncaptured mercenaries

Raging Guardian - deal 15% increased damage and take 15% less damage for 4 seconds when a nearby allied structure or an allied hero below 50% health takes damage.

Tier 2

Self-Sustaining Reaction (Q): Removes the cast time on Pyro Pulse.

Frenzy of the Wild (W): Gains 2% attack speed for every ally.

Cyclone (E): Reduces the cooldown by between uses by 0.5 seconds and charge cooldown by 1 second.

Tier 3

Purging Breath [Trait]: Lightning Breath attacks slow the target by 90% for 0.75 seconds and nullifies any block or spell shield effects on a target. Target cannot be affected again within 10 seconds.

Zealous Guardian [W]: Basic attacks reduces the cooldown of Strength of the Wild by 0.5 seconds.

Wind Barrier [E]: Using gale force grants resistant for 2.5 seconds. Reduces damage by 25%.

Tier 4 (See Heroic Abilities)

Tier 5

Wind Boost [Z] - Activate to dash forward in the direction you are facing. 30 second cooldown.

Circle Loop [Z] - performs an aerial loop evading all attacks for 1 second and returns to your previous position. 30 second cooldown.

Solar Beam (Q) - enemies hit are blinded for 4 seconds.

Tier 6

Incineration [Q]: Adds an additional Pulse of damage and each pulse now deals 2% of a target's maximum health.

Intimidation [W]: Slows the attack speed of nearby enemies by 50% and movement speed by 20% for 3 seconds when activating the ability.

Wind Tunnel [E]: Each gust creates a tunnel of wind that increases the movement speed you and allies by 20% for 3 seconds.

Vile Breath [Trait]: Poison breath attacks stun targets for 2 seconds and then slows their attack speed by 50% for 5 seconds. Targets cannot be stunned again for 5 seconds.

Tier 7

Dream Walker (See Heroic Abilities)

Acid Pool (See Heroic Abilities)

Fury of the Chimaera: Lightning attacks now chain to up to 3 additional targets.

Melt: Enemies affected by corrosive breath take an additional 1.5% of their maximum health in damage per second.