Necromancer Evolution idea: Horde

[Chronosplit]

As fun as it is that one can be an undead necromancer and summon their own kind at anytime, it locks you out of Lichform (and for good reason). So on that note, why not an undead-only evolution focused on summoning?

Requirements: Must have started the game undead, lv 50 MAG, lv 25 in either CUN or your undead race's main stat (DEX for skeleton, CON for ghoul)

Unlocked by either having a lot of minions or killing a certain amount of enemies with only minions.

+You can summon more of your own kind (Skeletons if you're a skeleton, Ghouls if you're a ghoul)
+A certain amount of ghouls are permanently with you as opposed to disappearing over time and summon outside of battle, but you can only have a certain amount like this. Skeleton basically gains Call of the Mausoleum's auto-summon.
+The ability to turn yourself into a Bone Giant or Ghoulking upon casting the proper spell? Maybe this gives you a racial-related boost?
+Something for Dreads and Rime Wraith, I guess.
+Maybe a sort of magical counterpart to Summoner's Summon Control?

This leaves the question of Whitehooves and whatever comes out in the next expansion.