Armor makes a lot of sense if you are playing Support/Bot AD/Top, but not necessarily mid.
Takedown cougar form does a ridiculous amount, scales off of AD, and deals physical damage. That is probably the only real reason for Armor pen (also for basic attacks if you play her as ranged AD Carry). She makes for a relatively sufficient hybrid.
I personally use mpen marks, mana regen seals, cdr glyphs, and gold/10 (or mpen) quints. I usually play bottom support with that. And 15/0/15 so I have more than enough utility and plenty of damage to contribute. :P

I personally use mpen marks, mana regen seals, cdr glyphs, and gold/10 (or mpen) quints. I usually play bottom support with that. And 15/0/15 so I have more than enough utility and plenty of damage to contribute. :P
Personal habitual activites? Utilizing gargantuan idioms to fabricate intelligence.
"It's a colloquial shorthand that means the paradigm exists because of how the game works mechanically. Hence, "the Meta." Stop being a useless pedant." - PlayGooYa
"It's a colloquial shorthand that means the paradigm exists because of how the game works mechanically. Hence, "the Meta." Stop being a useless pedant." - PlayGooYa
Well without promoting I do have a resource below in my signature that might be able to help you out. Xaoli also is a good nidalee player. So i'd say check out some guides first.
There are a number of runes you can run, these are my personal preferences
MARKS:
Greater Mark of Magic Penetrationx9
Greater Mark of Precisionx9
SEALS:
Greater Seal of Armorx9 (a must if you're going top)
Greater Seal of Scaling Mana Regenerationx9
GLYPHS:
Greater Glyph of Scaling Magic Resistx9
Greater Glyph of Magic Resistx9
Greater Glyph of Scaling Ability Powerx9
QUINTS:
Greater Quintessence of Ability Powerx3
Greater Quintessence of Precisionx3
Greater Quintessence of Goldx3
those are what I'd consider
There are a number of runes you can run, these are my personal preferences
MARKS:


SEALS:


GLYPHS:



QUINTS:



those are what I'd consider

Thanks for the Signature MissMaw!
What lane? If you mean AP top I would say use your AD nidalee runes. The AD helps you last hit and poke your enemy top. Her major AP scaling will be her spear which won't start hitting for a lot until it is maxed anyway (By which point you can BUY AP). The AD runes also make your cat form stronger at 6 and give you AD nidalees kill potential early on.
22 ad gg

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Just looking for an explanation on why high elo players prefer armpen and armor. Also, what quints are recommended if not mvoespeed? Thanks!