Enchantress sings the Witch's Aria, a magical lullaby, that slows nearby enemies until they eventually fall into an interruptible slumber.
Type: Superior Magic
AoE: 475
Manacost: 150/200/250
Cooldown: 120
Slows Attackspeed, Movementspeed and Castspeed of enemies by 7/10/13% every second for 10 seconds, stacking up to 5 times. Upon reaching 5 stacks, enemies will be stunned for 2/2.5/3 seconds. The debuff lasts for 2.5 seconds and refreshes on every stack.
Soundeffect: Could sound similar to the following, just doesn't really need lyrics:
http://www.youtube.com/watch?v=GdjSickYO9A
*Ability is not channeled
*The duration of the "Aura" around Enchantress that afflicts enemies with the movementspeed/attackspeed/castspeed slow is 10 seconds
*The duration for the debuff placed onto enemies is only 2.5 seconds, but gets refreshed with every new stack
*Even though the ability might seem quite potent, don't forget that the enemy team can simply split up in two or more different directions, so only one of them would be affected by the effect of this spell.