Why are these posts relevant? Just write every exotic and legendary item down on small pieces of paper. Write ascendant materials 2x more than the number of the previous items (or however the math works). Mix them all in a hat or small box. Step 1) Pull out one piece of paper. Step 2) read the paper. That's what people got. Put the paper back in the box/hat. Mix. Repeat step 1 and 2 until you're satisfied.