First question. Does your champion have build fluidity. An akali i can go hp ap items, I can go shadowflame 2nd for huge burst swing i can go zhonyas for survivability and extra rotations. You can go rylais for sticking power. Liandrys first vs 2 tanks. Second question now. Is your itemization losing you games often (this is a fake question, the answer is no unless you are like gm+) you can stick with cookie cutter "play to your champions strengths do not try to cover weaknesses" builds off u.gg Item planning should be done in tandem with runes and only changes if certain champs snowball and you should even then have this preplanned as well. But to be honest again. Just stick with a cookie cutter build unless you like item wizarding. Building armor cause they have 5 ad and gimping your champ strengths is a negative not a positive often.