[quote] Wait until the next day to buy more. Easy grind. Grind game for masterowkr cores. While doing so, each day, buy up to 3/4 cores from Spider. You’ll have plenty after awhile. I have 147 currently. Buying about 21-28 Cores a week sounds pretty good, to go along with random drops from consumables and such. Amounting most likely about 30-40 cores a week. Grind Valor and grab 10 a rank too.[/quote] You can already obtain about 50 a week. No need for ANY increase.