What kind of spell do you like?

OptiMAL, in what situation can you use summoning, for example? And who do you like to summon?

If my secondary hero has summoning skills, then they are very useful. You can summon units to absorb retaliatory damage or summon, for example, lepers. They can cast additional luck and remove retaliatory damage.
I summon those creatures that I can, but in particular, fairies (they fly far and you can harass ranged units), and lepers. And when summoning magic is upgraded, then elementals and drakons. They won't be a hindrance anymore:)