Knowledge Through Disintegration
Glacial Augment
Immobilizing an enemy champion will cause 3 glacial rays to emanate from them towards you and other nearby champions, creating frozen zones for 3 (+ the immobilizing effect's duration) seconds that slow enemies for 20% (+90% per 100% Heal and Shield Power) (+6% per 100 Ability Power) (+7% per 100 bonus Attack Damage) and reduce their damage by 15% against your allies (not including yourself).
Cooldown: 25sWhy?
The slow from Glacial Augment is fantastic for setting up an easy [E] and allowing you to kill any target to control the fight.
Magical Footwear
You get free Slightly Magical Footwear at 12 min, but you cannot buy boots before then. For each takedown you acquire the boots 45s sooner.
Slightly Magical Footwear grants you an additional10 Move Speed .Why?
Magical Footwear's raw gold value helps you accelerate your mid game item efficiency.
Biscuit Delivery
Biscuit Delivery: Gain a Total Biscuit of Everlasting Will every 2 mins, until 6 min.
Biscuits restore 12% of your missing health. Consuming or selling a Biscuit permanently increases your max health by 30.Why?
Biscuit Delivery is great for sustaining your laning and getting you to easy teamfights where you can take over.
Cosmic Insight
+
18 Summoner Spell Haste
+10 Item HasteWhy?
Cosmic Insight's general utility means more damage output and spell rotations.
Cheap Shot
Damaging champions with impaired movement or actions deals 10 - 45 bonus true damage (based on level).
Cooldown: 4sActivates on damage occurring after the impairment. Why?
Cheap Shot pairs well with the slows from Glacial Augment for extra damage.
Cheap Shot
Damaging champions with impaired movement or actions deals 10 - 45 bonus true damage (based on level).
Cooldown: 4sActivates on damage occurring after the impairment. Why?
Ingenious Hunter is great when paired with the slow item actives for Glacial Augment.
Deadly Disintegration Damage
Arcane Comet
Damaging a champion with an ability hurls a comet at their location, or, if Arcane Comet is on cooldown, reduces its remaining cooldown.
Adaptive Damage : 30 - 130 based on level (+0.05 AP and+0.1 bonus AD )
Cooldown: 20 - 8s
Cooldown Reduction:
Single Target: 20%.
Area of Effect: 10%.
Damage over Time: 5%.Why?
Arcane Comet is a great keystone choice for Vel'koz as it reliably empowers his ability to poke in lane. Thanks to the slow from [Q] and [R], and the small knockup from [E], you should be able to reliably land Comet if you are hitting your abilities.
Manaflow Band
Hitting an enemy champion with an ability permanently increases your maximum mana by 25, up to 250 mana.
After reaching 250 bonus mana, restore 1% of your missing mana every 5 seconds.
Cooldown: 15 secondsWhy?
The added poke sustain thanks to the extra mana from Manaflow Band is fantastic for keeping up lane pressure for a kill or zoning the enemy off a turret during a siege.
Transcendence
Gain bonuses upon reaching the following levels:
Level 5: +5Ability Haste
Level 8: +5Ability Haste
Level 11: On Champion takedown, reduce the remaining cooldown of basic abilities by 20%.Why?
Transcendence allows you to hit 35% CDR with just Morello's and Cosmic Insight, allows you to spam your abilities for poke damage and kill pressure.
Scorch
Your next damaging ability hit sets champions on fire dealing 20 - 40 bonus magic damage based on level after 1s.
Cooldown: 10sWhy?
Scorch further empowers your ability to poke and harass in the laning phase. If you're able to proc Scorch on cooldown several times before hitting level 6, you should be able to keep your lane opponent in kill range when you skill [R].
Magical Footwear
You get free Slightly Magical Footwear at 12 min, but you cannot buy boots before then. For each takedown you acquire the boots 45s sooner.
Slightly Magical Footwear grants you an additional10 Move Speed .Why?
Magical Footwear is a great rune choice on just about any champion largely for its raw gold value with no input. Think of it as effectively gaining a kill's worth of gold at 10min.
Cosmic Insight
+
18 Summoner Spell Haste
+10 Item HasteWhy?
Cosmic Insight is an all-around great rune choice on any champion, especially poke champions who are constantly looking to deal damage from range when their abilities come off cooldown.