Don't summon anything to the other side of the wall. Talon and Lance can take out any summon near them before it even gets in two hits. For now, we need to focus on defense. Let the BBs take care of the wall, in the mean time just keep Faw and L33tz4n safe. The Ice Serpant is a useless attacker; Risp calls it a wall, and he's right. Have Faw defend, move L33tz4n North twice and have her summon an E. Sphere to the North of the Serpant, and have the Sphere attack. L33tz4n'll be safe, and we'll get a good start. The Ice Serpant has a melee-range poison attack which is extremely powerful, but the E. Sphere is immune to magic.

EDIT: Then again, having L33tz4n stay where she is and defending after summoning could work, too. I'm not that concerned about the Ice Serpant being a huge threat, it's real danger lies in blocking off our pathes.