It appears that League of Legends patch 12.3 won't be bringing new skins - given that these tend to hit the PBE first thing in a new testing cycle, and there doesn't seem to be any as yet - but we ...

The next League of Legends champion makes a surprise appearance in Kai’Sa’s new splash art, which has been corrupted. The Void Empress shares cryptic messages with Malzahar and Vel’Koz.

Vel'Koz has received quite a few buffs across the span of League of Legends Season 13, increasing the true damage from his passive, as well as his base and attack speeds.