Hey just wanted some insight into what i should use for runes. This is what i would like my rune build to be just want you opinions.
Marks- Either Armor pen or Magic Pen
Seals-AD or Striaght Ability
Glyphs-Straight CDR
Quints-Speed
Im using magic pen, evasion , cdr and speed quints atm i dont want mana regen runes cuz i dont really have mana issues
Thanks for your help!

for quints i meant movement speed

I'd suggest this:

Marks: Armor/Magic Penetration (depending on if you play it as AP or AD)
Seals: MP/5
Glyphs: Cooldown
Quints: Flat HP

This helps with all of his key issues (mana problems, squishy) as well as boosting his DPS in the best possible ways (more abilities, the abilities deal more).

Movement speed shouldn't be necessary, as you are already plenty mobile with his blink-shot. Also AD/AP, especially in seals, is pathetic.

As everyone says, depends on how you wanna main him but ya rule of thumb

Marks : Armor / Magic Pen
Seals : (I do dodge, cause its just nice)
Glyphs : Cooldown
Quints : Hp/Speed/ Armor/Magic pen prefrence.