How I would Rework Runes

First, remove all minor runes except for the stat shards.

Second, rework the Keystones into something that can be understand by everyone: veterans, normies, noobs and even the Riot balance team.

#Domination Elektrocute [Removed] "Basic attacks and abilities generate stacks on enemy champions hit, up to one per attack or cast. Applying 3 stacks to a target within a 3 second period causes them to be struck by lightning, dealing them 30 − 180 (based on level) (+ 40% bonus AD) (+ 25% AP)."

[New] "+3% damage against Champions"

Predator [Removed] "Boots gain the active effect PREDATOR. The active is disabled for the first 150 seconds of the game. [...] Upon completion, grants bonus movement speed for up to 15 seconds. Grants 67.5% bonus movement speed for the first 1.5 seconds, reduced to 45% afterwards, until your next attack or damaging ability, which deals 60 − 180 (based on level) (+ 40% bonus AD) (+ 25% AP) Adaptive damage."

[New] "+5% damage against Champions;+3.5% damage taken from Champions"

Hail of Blades [Removed] "Basic attacking an enemy champion grants 75% − 125% (based on level) bonus attack speed for your next 3 basic attacks. While active, Hail of Blades ignores the attack speed cap."

[New] "+4%/+2.5% (Melee/Ranged) damage against Champions from AA; +5 Lethality and 4 Magic Penetration"

Dark Harvest [Removed]

#Precision Press the Attack [Removed] "Basic attacks against enemy champions apply stacks for 4 seconds. Attacking a new target removes all stacks from the previous target. Applying 3 stacks to a target deals 40 − 180 (based on level) Adaptive damage and makes them Exposed for 6 seconds, causing them to take 8% − 12% (based on level) increased damage from all subsequent sources (except from true damage)."

[New] "+1.75% damage (doubles against structures and epic monsters)"

Lethal Tempo [Removed] "After 1.5 seconds upon damaging an enemy champion you gain 40% − 110% (based on level) bonus attack speed as well as ignore the attack speed cap for 3 seconds. Attacking a champion while the effect is active will extend the duration to 6 seconds."

[New] "+1% damage (doubles against structures and epic monsters); AA deal additional 10% of your AP as bonus magic damage "

Fleet Footwork [Removed] "Moving and attacking generates Energize stacks, up to 100. When fully energized, your next basic attack gains FLEET FOOTWORK. FLEET FOOTWORK: Your next basic attack restores 3 − 60 (based on level) (+ 30% bonus AD) (+ 30% AP) health and grants 20% bonus movement speed for 1 second. On ranged champions, against minions, the healing is only 20% effective."

[New] "heals for 7% of damage dealt (66% less effective for AoE dmg)"

Conqueror [Removed]

#Resolve Grasp of the Undying [Removed] "Dealing or receiving damage within 2 seconds generates one stack every second. At 4 stacks, your next basic attack within 6 seconds, against an enemy champion deals 4% of your maximum health bonus magic damage, restores 2% of your maximum health, and permanently grants 5 bonus health. The empowered attack duration refreshes whenever dealing or receiving damage. On ranged champions, the effects are reduced by 40%, down to 2.4% of your maximum health, 1.2% of your maximum health, and 3 bonus health respectively."

[New] "+3% max. HP"

Aftershock [Removed] "Immobilizing an enemy champion grants 70 − 120 (based on level) bonus armor and bonus magic resistance for 2.5 seconds. After the duration, you release a shockwave that deals 10 − 120 (based on level) (+ 3% of your maximum health) (+ 15% bonus AD) (+ 10% AP) magic damage to nearby enemy champions and monsters."

[New] "increases your total armor and magic resistance by 8%"

Guardian [Removed]

#Sorcery Arcane Comet [Removed] "Damaging an enemy champion with an ability hurls an Arcane Comet at their current location, dealing 30 − 100 (based on level) (+ 35% bonus AD) (+ 20% AP) Adaptive damage after a brief delay."

[New] "+5% CDR ; +5% max. CDR ; +15% CDR for items ; +10%CDR for summoner spells"

Summon Aery [Removed] "Damaging an enemy champion signals Aery to dash to them, dealing 10 − 40 (based on level) (+ 15% bonus AD) (+ 10% AP) Adaptive damage. Healing, shielding or buffing an ally signals Aery to dash to them, shielding them for 35 − 80 (based on level) (+ 40% bonus AD) (+ 25% AP) for 2 seconds."

[New] "+7.5% heal and shield power (doubles on targets below 25% health)"

Phase Rush [Removed] "Basic attacks and abilities generate stacks on enemy champions hit, up to one per attack or cast. Applying 3 stacks to a target within a 3 second period grants you 25% − 40% (based on level) movement speed and 75% slow resist for 3 seconds."

[New] " +5 MS when out of combat ; +5 bonus MS on ; +1.5% total MS"

#Inspiration [Removed]