League of Legends Rune: Greater Quintessence of Scaling Ability Power
Greater Quintessence of Scaling Ability Power

Purchase Cost: 1025
+0.43 ability power per level (7.74 at champion level 18)
Purchase Cost: 1025
+0.43 ability power per level (7.74 at champion level 18)
Even though the flat AP quints help you in the early game, the scaling AP could be viable for some midlaners that are not that dependant on early-game AP to bully their lane such as Kayle or Lulu building atack speed early benefitting from hybrid damage for the bully potential.
Keep in mind this is but a theory and if there is an expert mabye he/she could chime in for the viability of these runes?