see, i only have two rune pages one for nasus and bruisers (ad, armor, and cdr) and one for mages (ad(for last hitting), ap, and a bit of cdr)
when I take cdr runes on rumble, I can spam more, but I dont do as much damage early game. when I take the mage runes, I do damage early game, but I end up getting stuck because there arent a lot of items that give cdr that dont give mana. no more dfg either. what should I do?
AP Quints Armor Yellows MPen reds Mresist glyphs
Which is like the same for most AP midlaners and a lot of AP junglers. This runepage is very flexible. You can have your other rune page set to AD for bruisers and ADC.
Ability Power Quints x3
Hybrid Penetration Marks x9 (Use Magic Penetration Marks x9 if you don't have the hybrids)
Magic Resist Glyphs x3
Cool Down Reduction Glyphs x 6 (10% cooldown reduction at lv 1 if you take the 5% cdr masteries)
If your against a full ad team, then you can try using scaling cdr glyphs x9 which gives 15% at lv 18. (20% total with masteries)
The Hybrid Marks give you better trading damage when you aa with your flames.
