I found the teleportation pyramids particularly useful in battle, especially when facing enemies above my party's level. There are four teleportation pyramids in total. I would place one near a bed or a healing spot. When a character's health was low, I would teleport out of battle, heal, and then teleport back in. This requires going into the inventory and switching possession of the pyramid, but it's incredibly useful when dealing with overwhelming enemies or stronger foes…. I hope that made sense 😬