Why do summons party members disappear after you summon?

[Angel of Iniquity]

I just noticed that most party members disappear after you summon...
Is it because the summon won't use full power if all members are there?

[loaf]

Probably because the summon's attack is so great that they don't want to hurt the teammates.

[Taco-Calamitous]

Is this, like, just in video games in general, or are you talking about Final Fantasy games? Granted, I can't think of many other games that use summons-except games without "parties" in the jrpg sense, like The Elder Scrolls or Warcraft-but if you're talking specifically about FF, this should go in the general FF forum. In fact, I'm just going to assume you were talking specifically about FF's and move it to general ff, so I don't have to think about it. Anyhoo...

Wuv, Yer Mom

[pwn3rxp]

I think troll face was right

[xXx Rikku xXx]

I think the creators just did it like that so there is more space on the battle feild for the summon scene, you know just so the characters don't get mixed up with in it...