Tegank's updated sylvanas build

Hitting an enemy Hero with Withering Fire increases Sylvanas's Attack Speed and Spell Power by 5% for 6 seconds, stacking up to 5 times.

Minions that die under the effects of Shadow Dagger or Sylvanas's Traits explode, dealing 130 damage to nearby Minions, Mercenaries, and Summons,

Hitting the same enemy with 5 slots of Withering Fire causes the 5th shot to deal 350% bonus damage.

Shoot an arrow that can be reactivated to deal 228 damage and Silence enemies in an area for 2.5 seconds. The arrow detonates automatically if it reaches maximum range.

Haunting Wave can be cast a second time for free within 5 seconds after teleporting. Teleporting with Haunting Wave resets the cooldown of Withering Fire.

Hitting an enemy with Withering Fire grants 6% Movement Speed for 2 seconds, up to 30%. Basic Attacks refresh this duration.

Withering Fire applies Banshee's Curse, and Heroes hit by Withering Fire reduce its cooldown by 0.75 seconds.