Eirena by Magister22

1) [Mana Harvest]
Quest: Regeneration Globes grant an additional 100% Mana.
Reward: After collecting 15 Regeneration Globes, gain Mana infusion

Mana infusion (D): Activate to instantly restore 12% of the target's maximun mana. (30 seconds cooldown)

Reward: After collecting 30 Regeneration Globes, Mana infusion also grants 20 armor to the target for 3 seconds.

2) [Desvastating Shcoks] (E)
Quest: Stun enemies with Unstable Wave.
Reward: After Stuning 5 enemy Heroes, increases its explosion damage by 50.
Reward: After Stuning 10 enemy Heroes, increases its explosion damage by 50 more.
Reward: After Stuning 20 enemy Heroes, increases Unstable Wave's speed by 25%.

3) Charm:
Regeneration Globes grant a stack of Bribe, you can cast Charm of minions for free, or use 5 stacks to Charm a Mercenary.
Cast on enemy minions:
Force an enemy Minion to fight for Eirena's team for 10 seconds, charmed minions deal 10% extra damage and have 10% extra health.
Cast on mercenaries:
Force a mercenary to fight for Eirena until death, you can only Charm one Mercenary at a time. They will follow Eirena to the battle.

Essentially the Charmed mercenary will work as pet like Rexxar's Misha.

Cooldown: 10 seconds.