League of Legends lead gameplay designer, Riot Scruffy, has revealed the upcoming nerfs to the Conqueror keystone. The damage will stay roughly the same, but the number of stacks will get increased.
Since it was added two seasons ago in patch 8.6, Conqueror has been the strongest and most popular keystone in League of Legends. There are simply way too many champions that can utilize this rune, even though it was meant for bruiser-type champions only.
The keystone allows you to temporarily gather bonus adaptive damage (AD or AP) with healing on top - based on how many Conqueror stacks you've got. Each melee auto-attack and damaging ability grant two stacks, while a ranged attack giveis only one stack.
Riot Scruffy revealed that they are planning to increase the number of stacks from 10 to 12 with the adaptive force per stack going down from 2-5 to 1.7-4.2. This will result in roughly the same amount of damage when fully stacked, but it will extend the time to get there.
The change won't significantly affect the best Conqueror users like Renekton, Irelia, or Garen since they will still be able to fully stack the keystone in no time.
This nerf is mostly targeting AD carries that use this keystone, with Draven as the prime example. Going Conqueror and rushing Bloodthirster as the first item gives him too much sustain at the moment and he can outduel almost anyone early on.
Making him attack two more times to get the full potential from this rune could be the step in the right direction but it could be far from enough to make players choose some other keystone over Conqueror.
This stack extension could make the difference for champions like Illaoi, especially early on in the game. She already has a hard time stacking up the keystone with her low attack speed and long ability cooldowns and this nerf could make champions like her go for another choice when it comes to runes.