What do you mean?Idiot question here but how does the summoning work is it as much as they want.
Do you mean the points generation from the slann to summon units (there's a table and you get 1 point + 3 points per spell you don't cast + d3 if you have an astrolith: Use generated points to summon one unit at the end of the movement phase with summoning costs ranging from 6pts for 10 skinks to 24 for a carnosaur/bastiladon)
The Engine of the gods - set list to choose from - 3 rippers/terradons, 20 skinks, or 10 saurus
or Endless Spells - A wizard can summon one endless spell per turn, but you cannot recast an endless spell that is still active.
or with no longer having reinforcement points? - you can summon as much as you are able to over the course of the game with generated reinforcement points, 14-17 EoTG rolls, and endless spells that get cast and dispelled.