Mylune by Leafdreamer

Tier 1:
From Death Comes Life: Whenever a nearby enemy minion dies, restore 2.5% of your maximum health and 1.5% of your maximum mana.
Nature's Blessing: Whenever you hit an enemy with an ability, you gain a charge of Spell Block, reducing the damage from the next enemy Ability against you by 50%. Can hold up to 3 charges.
Life Finds a Way: Squirrel Assault now goes over terrain and its range is increased by 200%.
Bristled Skin: Whenever Bear Toss hits an enemy hero, you gain a shield for 20% of your maximum health for 12 seconds.

Tier 2:
Nature's Awareness: Capturing a mercenary camp grants 4% bonus ability power, up to 20%. Upon capturing 5 mercenary camps, also gain 5% bonus movement speed and 25% increased vision radius.
Hasty Friend-Making: Friend of the Wilds' cooldown is reduced by 40%.
Critter Commander: Friend of the Wilds increases minion damage done by 35%.
Friendship Never Ends!: Non-boss mercenaries are also affected by Friend of the Wilds.

Tier 3:
Feast on the Mighty: Eagle Call deals 150% increased damage against enemy heroes.
Ankle Bite: Squirrel Assault now also roots the first enemy hero hit for 1.25 seconds.
Natural Momentum: Killing an enemy with an ability reduces your Basic Ability cooldowns by 1.5 seconds.
Majestic Leap: Activate to leap towards a target direction. 8 sec cooldown. 2 charges.

Tier 4: Heroics
Nature's Call
Lullaby

Tier 5:
Nature's Guardian: Friend of the Wilds also affects the nearest allied hero and grants them a shield for 15% of your maximum health every 10 seconds.
Infested Talons: Eagle Call now also reveals its targets for 10 seconds and causes them to take medium damage over that duration.
Un-Bear-able Pain: Bear Toss deals 50% increased damage on rooted, stunned or slowed targets.
Comfy Landing: Bear Toss' cooldown is halved if it hits an enemy.

Tier 6:
Flock Together: Eagle Call gains a second charge and its damage is increased by 15% per eagle alive.
Cub Lob: Bear Toss's range is increased by 33% and it's delay is reduced by 50%.
Critter Kill Squad: Squirrel Assault increases your attack speed and attack range by 25% for 8 seconds if it hits an enemy hero.
Boss Friend Benefits: Friend of the Wilds can now be used on Boss mercenaries to deal 50% of their health as damage.

Tier 7: Storm Tier
Lively Environment: Nature's Call's radius is increased by 50% and it now also affects allied heroes and mercenaries, for 25% of its effect.
Sleepwalk: Mylune can now move and cast abilities while channeling Lullaby.
Boundless Friendship: Friend of the Wilds' passive radius is increased by 1000% and the damage reduction is increased to 35%.
Make Haste: Activate to increase the Movement Speed bonus of Dryad's Swiftness to 80% for 6 seconds.

MY1-UN3
Based off Machines of War
Lore: MY1-UN3 was originally discarded and forgotten as a failure, as she was rather useless in combat. Little did they know, she found a valuable ally in the rest of the discarded machinery, and together they would rise and prove that they were stronger than their creators.
For Friend of the Wilds, MY1-UN3 uses her mind control helmet.
For Squirrel Assault, MY1-UN3 summons mechanical squirrels. (http://www.wowhead.com/npc=2671/mechanical-squirrel)
For Bear Toss, MY1-UN3 throws an anodized bear cub. (http://www.wowhead.com/npc=68839/anodized-robo-cub)
For Eagle Call, MY1-UN3 calls down a mechanical pandaren dragonling. (http://www.wowhead.com/npc=64899/mechanical-pandaren-dragonling)
For Nature's Call, MY1-UN3 uses a goblin teleporter device.
For Lullaby, MY1-UN3 releases a shock from a gnomish device, but also electrocutes herself. (For Sleepwalk, she can still move, and some sparks fly out of her.)

Nightmare Mylune
Based off the Emerald Nightmare

Druid of the Flame Mylune
Based off Firelands