Ya don't think can drop from the spyrestone sents. I think that was OTM's original plan, but was never implemented. Then at last update they added them to edl only and yes PH which is what we call the 4 star edl drop them. I've gotten 2 from them. But also 5/6 edl drop too and it seems as if 205/210/215 drop the grand + and 185/190/195/200 seem to drop minors,lesser, etc... But not 100% about that just what I've seen in our clan I think we have maybe 10-12 total and that's just my experience maybe muldar or someone could give you a better answer.