Vel'Koz has only received a single stat change since release
Other than the recent mana changes, which basically every mid laner that uses mana got, Vel'Koz has had only one buff and some QoL/bug fixes.
W - Void Rift MISSILE WIDTH: 65 ⇒ 88 R - Life Form Disintegration Ray RANGE: 1500 ⇒ 1550
And you know the best part about these changes? They were only done to match the visuals, so they more or less bug fixes.
Shout out to
, for being the only truly balanced champion to ever have been released. It's a shame he didn't share this knowledge with Riot, seeing how every champion after him (except
, who was awful on release) was extremely over tuned.