Changes to Akali to push her into the support role.

Allies gain movement speed and defense buff while inside shroud. Akali can tag an ally with mark (q) to make them go invisible when in shroud. Maximum of 2 allies can be tagged at a time. (lasts about 6 seconds) When attacking the same enemy as a marked ally, damage is increased by a certain percent. E slows enemies, if Akali is in shroud while casting it, enemies are snared.

Compensation for extra utility: lower base damage and a slight reduction in ap/ad ratios.