Both of these sets do the same thing, the only difference being Alfiq has 100% uptime...
I believe Necropotence might need a rework... Someone in zone mentioned you could stack the two for huge magicka... but... does anybody actually do that?
master summoner giving magicka/stamina without pet and health with pet is a strange distinction when there are many petless hp builds getting stamina/magicka and maxmagicka pet shield sorcs getting hp and necropotence exists and pets used to scale with magicka. Giving the 10%modifier to the higher of both would make more sense.
Necropotence should not be useless or reworked into a totally different set because of expert summoner. Alfiq+necropotence should become viable build again.