Make Summoning risky

[Gwenneth_Corvain]

Instead of trying to balance the summons against oposite expectations (fighters want them to be manageable, mages want them to be meaningful) - make the descission to call an incredibly powerful creature to your side risky.

Either have a pre-requirement to have protection-from-X up before summoning it (in the case of a random alignment involving that you may have warded against the wrong alignment) or have summons require a 1/round concentration-check to keep it under control.

Failure to do so could turn the summon against the caster, just have it leave, or go on a rampage akin to being under a confusion spell.

This would allow summons to be still powerful, but the caster who resorts to it would think twice, because there is Always a very real chance that demon is coming for you, not the fighter you want it to fight.

This would even allow for meaningful counter-Play by fighters through breaking the casters concentration (ex: taunt?).
Summons would be scary for -everyone- because now everyone may find themselves on the receiving end.

[Irongron]

I believe this is still the case for certain summons (Pit fiends maybe?), and expanding it in a Pen and Paper setting could be fun, but on Arelith I think this would frustrate many players.

Rejected.