katika
Warlord
That same "problem" exists with skeletons and tigers. As is, the situation is three times as bad because each summoner can get 3 tier-3 summons. This would limit it to 3 per turn, but still allow for 6 other units. This might encourage players to pick more magic spheres because +50% str, +2 move probably isn't better than 6 additional tier-3 summons with fewer promotions.but then, its not that simple....
if the summons stick around for three turns-
then you can have three summoners in three corners of your empire able to summon an army of say, three demons at just one of those summoners.
or using just one of three for all three summons so that one can maximize his combat.
it doesn't seem like an intended side effect
though it does seem like a soultion to the "triple horde" effect
There are a few potential problems: twincast, fleshgolems, Eaters of Dreams. It seems to me that the Eaters of Dreams wouldn't be nearly as effective with limited summons, and aren't there only 3 leaders with summoning (two of whom are Sheiam)?