This is one reason why Summoner is considered a powerful archtype.
True. In the Baldur's Gate and Icewind Dale games summoning is the single strongest type of wizard, the most troublesome to play against. You can easily tank a lich who spams invocation or necromancy spells fairly early in the game, but a lich who summons demons after demons to aid him can be a nightmare, even late in the game. The "one summon at a time" mechanics greatly mitigates this problem in Neverwinter Nights.
However, personally, I'd like to at least have a wide *variety* of summons that I can choose from to adapt to different situations. I don't need to be able to summon hordes after hordes of monsters. The lack of variety is the one thing that kills the feel of being a *summoner* for me - you summon basically the same thing over and over. Giving him different abilities that are strictly tied to the four elemental schools doesn't quite cut it. I prefer different creatures, with varied appearances and interesting unique abilities that reflect their nature. Of course, they also have increasing overall combat capability to make leveling up as a summoner exciting.
"We make our choices and take what comes and the rest is void."
