Crossing
If Forge and I hold the rope, Buckthorn can tight-walk and Nar Heru can "hang" across fist over fist, ankle over ankle. I don't know the term for it, if there is one. Then pull Lucien up.
Nar Heru can Mage Hand the shield for Forge.
When he's close to it, it would be nice if Nar Heru could attempt an Arcana check to disable the trap before I come across. Can't rogues use Thievery to disable magical traps? I'm not sure how the mechanics of that work...
When everyone else is safely over and Nar Heru or Lucien has attempted to disable the trap, I'll make my attempt. I will short rest before trying )while Lucien and Nar Heru are trying to disable the trap) so I can get guidance from the spirits.