Lanefan
Victoria Rules
Wall of Force in front of an airship in flight = all kinds of fun! Pulled this one off as a player within the last year. Or - and as a player I once helped with this one too - Wall of Force across a road not far in front of the 300 horsemen galloping alongsaid road at full speed, followed by a series of Fireballs into the resulting wreckage (yeah, we really didn't like that army! Felt bad for the horses, though).I find spells like Wall of Force to be already far less than entertaining. Poof, you win the encounter because the baddy doesn't have a teleport effect and you just bury it in summonings. Gee, that was a fun encounter. Conversely, you do it to the party. Yay, I tpk the entire party because the wizard didn't happen to have teleport today. Wow, that's fun.
This is a very, very poorly worded spell and is FAR too powerful for the level it's at.
And, if magic can't cross the WoF then how can your summoned critters get in there?
Further, there is a viable non-teleport way out of the hemisphere version if you've got the time and-or resources handy. I'll leave this one out there as a thought exercise for a bit...