the 4 summoning of the shadows

at second level you can summon a monster of the shadows for 12 hours or it dies and the shadow monsters cannot regenerate health potion or any other healing magic will not work on them and the higher level of spells the different ones you can cast 

2nd level 

two shadow wolves you summon two at a time you can't summon more than 2 

3th level

a shadow peryton that you can ride but you can't summon more than 1 

5th level 

the abyss minotaur the only way to summon the minotaur is taking 2d 4

8th level

the divine general you can only summon one and the cost you can't control it!