Kalithresh by Koetetsu

Level 1

Bloodsoaked Trident (Quest): Hit enemy heroes 15 times with Impaling Strike
Reward: Impaling strike and Trident Throw now causes the target to bleed. Losing 1% of their maximum health per second for 10 seconds.

Enraged Regeneration (Quest): Collecting regeneration globes increases health regeneration by 1 up to 20.
Reward: Upon collecting 20 regeneration globes, Activating Warlord's rage increases this bonus to 80 for the duration of the ability.

Leatherback (Passive): Passively gain 15 physical armor. If Kalithresh takes damage more than 10% of his health he becomes unstoppable for 0.5 seconds. This effect has a 10 second cooldown.

Level 4

Crashing Wave (Q): The wave deals 15% increased damage the longer it travels, up to 60%. But reduces the travel speed by 30%.

Numbed Nerves (W): Warlord's rage delays 50% of all incoming damage until the end of the ability.

Skull Bash (E): Using Head Crack on heroes grants 20 armor for 3 seconds.

Level 7

Tide Over (Trait): Impaling Strike now deals 100% of your basic attack damage to nearby enemies around the rooted target.

Serpentine Momentum (Z): Movement speed bonus now decays over 2 seconds upon entering combat or taking damage.

Trident Throw (Active): Throws a trident in the target direction. If it hits an enemy they are rooted for 1 second and take 115 (+4%/level) damage.

Level 10 (See Heroic Abilities)

Level 13

Rage Flip (Trait): Impaling Strike now flips the target over Kalithresh but no longer roots the target.

Intimidating Roar (W): Activating Warlord's Rage now reduces the damage of nearby enemies by 25% for 3 seconds.

Maul (E): Head Crack now heals for 15% of Kalithresh's maximum health over 3 seconds.

Level 16

Minion of the Deep (Q): Crushing wave summons a sea elemental on the first 3 enemy heroes it hits. Sea elementals deal 65 (+4%/level) ranged damage and stun their target for 0.5 seconds after attacking them 4 times. Up to 3 elementals can be active at a time and last for 8 seconds.

Naga Distiller (W): Increases the bonuses to 30% attack and movement speed and 50% increased damage but requires a channeling time of 3 seconds.

Brain Damage (E): Lower's the target's armor by 25 for 4 seconds.

Level 20

Spell Reflection (See heroic abilities)

Vengeful Torrent (See heroic abilities)

Fueled by Carnage (Trait): Impaling strike now extends the duration of Warlord's rage by 1 second or reduces its cooldown by 1 second when on cooldown.

Deep Strike (Active): Burrows into the ground and creates a Rip Tide on the location and bursts forth from it.