New Sorcery Keystone: Unleashed Power
Gain AP until out of combat every time you deal damage to an enemy champion with abilities. Decays rapidly out of combat after a delay.
Gain 1 stack per champion hit for dots and AoE effects, and 3-5 stacks for single target, non-dot damage.
So Conqueror is for fighters, and this new rune is more for control mages who don't burst but rather use constant damage such as dots or low cooldown spells.
which is about 1500 gold u dont need to spend quite as soon. you can build AP MUCH SOONER.. this makes supports do a LOT more damage than in prevoius season.. becuase thier first 2300 gold is no longer being spend tword support items... instead it's being spent on damage