Abilities
Vel'Koz's abilities apply stacks; at 3, they deal a burst of true damage.
Fires a plasma bolt that splits into two on reactivation or hitting an enemy, slowing them.
Opens a void rift that deals damage twice, with the second burst delayed.
Vel'Koz creates an explosion that knocks up enemies and pushes nearby foes away.
Vel'Koz channels a beam for 2.5 seconds, dealing true damage to researched enemies.
Guide
Play as a backline artillery mage, focusing on poke and zone control with your abilities, and only commit to fights when you can safely unload your full combo.
Tips
Maximize poke damage by landing your Q and W from long range before engaging.
Use your E, Tectonic Disruption, to interrupt enemy channels or peel for yourself.
Position behind your team to avoid being caught out while dealing sustained damage.
Build magic penetration items like Liandry's Torment and Void Staff to shred tanks.
Save your ultimate, Life Form Disintegration Ray, for clustered enemies to maximize damage.
Combos
Q > W > E > R: Slow with Q, follow up with W for damage, then E to knock up and ult.
E > W > Q > R: Start with E to set up a knock-up, then W and Q for burst, finishing with ult.
W > Q > E > R: Use W to poke, then Q to slow, E to interrupt, and ult for execution.