D&D 3.x [Rule questions] Surprise, Teleportation & Invisibility

[Zeddok]

Yesterday, we took a deep dive into surprise rounds. “Aware or unaware”—that is the question.

How do you do it—when does the group get a surprise round? When do skill checks come into play?

And—most importantly—how are these cases handled according to 3.5 RAW?

• A group teleports into the middle of a fight.
• A group teleports invisibly into the middle of a fight.
• A group teleports outside of the fight near an enemy group to initiate combat.
• A group teleports invisibly outside of the fight near an enemy group to initiate combat.

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[bloodtide]

Well....

1. RAW does not say how teleport interacts with surprise. In general, someone in combat can't be "surprised" by things in combat. Teleporting in is not any different then a summons or even tactical teleportation. So, no surprise.
2.This would get the invisible ones surprise, the same way if they were invisible and walked over to the fight area.
3.No surprise. They are out of the area.
4.No surprise, until they enter combat.

Of course, note the above notes that the people in combat don't have detect invisibility, scent or other such abilities.