Need help in buying runes.

I need runes for both ad and tank for a one champ. What should I take. I usually play top and sup but do play mid when needed. I also sometimes play bot using yi and thats the only adc champ i use. Recommend me some runes for a one rune page ( i currently have two rune pages). Champs I use (Yi , Garen , Nasus , Rumble , Lux , Soraka , Janna , Modekiser , Morgana , Darius , Tristana ). I never jungle.